In midfield, neither Lampard or Gerrard have performed: both should be dropped! Both cracking players at club level but simply aren't producing the goods. Time for some new thinking.
Against the decent teams i'd go with
--------Form striker (Defoe, Heskey, Owen, Crouch, Bent, Ashton)
Against the lesser teams;
with Barry filling for whatever central midfielder would undoubtedly be missing as often as not.