I'm on record here as saying I want Isemonger out, but I thought he played better last week and, as Beeks stated, he's never really had a long enough run in firsts to establish himself.
Unless there is someone in PL absolutely demanding to be selected ahead of him then I think he should stay.
And I recall a time not that long ago when all and sundry were singing the praises of Bickerstaff. He's never really done it for me (though I've missed most of the last 2 years while in England) but I'd give him the same benefit I'm giving Sam.