There's speculation England could name four spinners for the touring party to Sri Lanka which possibly means a seamer missing out and having a rest. Stuart Broad even mentioned as a possibility, as has previously found it very tough in those conditions.
(I personally think that a big call and perhaps a little unlikely but it could make sense)
So Moeen Ali, Adil Rashid and Jack Leach may be selected in all the tests with Dom Bess probably also touring.
The Somerset wicket at Taunton has been so 'prepared' recently, using that word in its most loosest sense, that its possibly resembling a Galle wicket at it's most vicious, and the Somerset spinners will be well used to using such advantageous conditions.
Rory Burns is likely to be selected to partner Jennings and Pope possibly taken along too at least as part of the squad.
Possible squad,
Jennings, Burns, Moeen, Root, Bairstow, Stokes, Buttler, Curran, Rashid, Leach, Anderson, Woakes, Pope, Bess plus one extra top order batsman *
* anyones guess really but Vince has been in the squad recently and maybe favourite.