England national selector Ed Smith says the team have "moved away" from using Moeen Ali as a front-line spinner in Tests.
Moeen was left out of England's last five-day assignment, a draw with New Zealand in Christchurch, with Somerset's Jack Leach called up for a debut in his stead.
And there was no place for Moeen in the 12-man squad for the upcoming two-match series against Pakistan, which was released on Tuesday.
A broken thumb has ruled Leach out, prompting England to call up his uncapped county team-mate Dom Bess, while Moeen has been limited to a bit-part role with Royal Challengers Bangalore in the Indian Premier League.
"I don't think anyone doubts Moeen's ability to contribute handsomely to cricket matches, particularly in England, where he has a strong record," said Smith of a man who has five hundreds and four five-wicket hauls in Tests.
"It was just a sense that we've moved away from the idea of Moeen playing as a first spinner. That was something that the group has moved away from.
"And therefore to bring him back before he's had a chance to, if you like, address things that he's been working on didn't feel right, so the opportunity came up for Bess.
"Moeen Ali - we know he's a very dangerous player, we know he can play a major part in winning games with bat and ball, but right now, after a difficult winter for him in the Test arena, it didn't feel like the right time to bring him back into the squad."
There was, however, a recall for Jos Buttler, who has not played a Test since December 2016 but has been in superb form in the IPL, equalling the tournament record by making five consecutive fifties for Rajasthan Royals.
Buttler is set to bat at seven, with captain Joe Root moving up to three to replace the dropped James Vince while Dawid Malan, Jonny Bairstow and Ben Stokes will comprise the middle order.
"With Ben Stokes obviously an established and outstanding number six and also balancing the team as a fifth bowler, that created a possibility for a different look at the number seven position," added Smith.
"Who could do that job in a way that was unique, in a way that really brought a different dimension to the whole batting order? And the panel decided that Jos Buttler fitted that bill perfectly.
"The message to Jos from everyone around the table was to play his way, to play with the confidence and the flair that he's capable of batting with and the skill and the decision making.
"He's become such a complete cricketer in the white-ball form of the game and we felt it was the perfect opportunity to reintroduce him to Test cricket and for him to play his full expressive way in the Test arena as well."
|DeGrom strikes out 12, Mets hit 5 homers in win over Yankees|
|Djokovic needs nine MPs as Murray crashes out|
|Murray unsure of US Open readiness after Cincinnati exit|
|Van Dijk: Alisson making difference at Liverpool|
|Johnson saves eight MPs but Djokovic prevails|
|Federer anxious ahead of Cincinnati comeback|
|Tevez relishing Messi reunion|
|Ronaldo arrival has taken Juve forward in Europe – Nedved|
|Serena steamrolls Gavrilova in Cincinnati return|
|Packers QB Rodgers doesn´t regret criticising team-mates|
|Indians OF Martin recovering from life-threatening bacterial infection|
|Shoulder injury sends Royals starter Duffy to DL|
|Yankees place Sabathia on DL with right knee inflammation|
|Aubameyang urges Emery to capitalise on his ´spark´ with Lacazette|
|Anderson can play until he´s 40, says Bayliss|
|Keita living childhood dream after securing Inter switch|
|49ers to sign veteran RB Alfred Morris, Kyle Shanahan says|
|Arnaiz leaves Barcelona for Leganes in €5m deal|
|Tottenham´s move to new stadium delayed|
|Roosters-bound Hall suffers ACL injury|
|Murray suffers Cincinnati defeat to Pouille|
|No Cech mate - Arsenal goalkeeper hits back at Bayer Leverkusen|
|Halep first to seal WTA Finals spot|
|Veteran Carmelo Anthony pens one-year Rockets deal|
|Runners and Ryders: Poulter closes in on Team Europe spot|
|Gameiro presented by Valencia after departing Atletico Madrid|
|World Cup winner Kimpembe extends PSG contract to 2023|
|AC Milan send Locatelli on loan to Sassuolo|
|South Africa´s Etzebeth set for return from injury|
|Rafinha ´very likely´ to stay at Barcelona|
|No dual Ryder Cup role should Woods make USA team, says Furyk|
|Inter complete Keita deal|
|David Silva announces retirement from international football|
|Modric in Real Madrid´s UEFA Super Cup squad amid Inter links|
|Neville hopes Shaw is on to something special after first United goal|
|Unchanged England waiting on Stokes verdict|
|Yates brothers to race Vuelta together|
|Kalinic explains why he rejected World Cup medal|
|Furyk excited to see Woods´ return to form|
|Liverpool ignoring media´s champions chat, says Van Dijk|
|Suspended Smith replaces Kohli as top-ranked Test batsman|
|Tiger fanfare inevitable but it´s time to recognise Koepka as the star he is|
|Dier: Tottenham will shut up transfer critics|
|Fernandes leaves West Ham for Fiorentina on loan|
|´No chance´ Willian would have stayed at Chelsea under Conte|
|Vettel confident he can catch Hamilton|
|Cane dismisses talk of All Blacks limiting haka|
|Zaha promises Palace commitment as contract talks continue|
|Real Madrid defender Odriozola to miss UEFA Super Cup|
|All Blacks wary of Pocock threat|
|Bayern Munich confirm no ligament damage for Alaba|
|Nicklaus hails Koepka´s great year after US PGA triumph|
|Keita ready to ´explode´ at Inter|
|Halep: Stephens makes me a better player|
|Manchester United loan Wilson to Aberdeen|
|Beale backs Hodge to start in Rugby Championship opener|
|Bakayoko arrives for AC Milan medical|
|Australia favourites for Rugby Championship opener, says Hansen|
|Muller hails Lewandowski: That´s why Bayern won´t let him go|
|Allegri eyes Champions League after watching Ronaldo score first Juventus goal|
|LaLiga 2018-19: Barcelona or Real Madrid - whose close-season transfers have been better?|
|Fekir almost certain to stay at Lyon, says Aulas|
|Tuchel unaware of PSG deal for Kehrer|
|MLS Review: Rooney´s heroics lift DC, Villa inspires NYC|
|Sale strikes out 12 in Red Sox´s win over Orioles|
|Scott buoyed by Bellerive display|
|Edmund, Mannarino win Cincinnati openers|
|WATCH: Rooney saves open goal before setting up last-gasp winner|
|Kovac praises three-goal Lewandowski but thanks Heynckes|
|Nadal withdraws from Cincinnati Masters|