Redknapp has always preferred a big lump of a forward to play off of, so Crouch is almost a guaranteed starter. Keane's been moderately legendary for Spurs, though he's a little inconsistent. Defoe's on form, is very quick and a remarkable finisher. He and Keane will, on and off, compete for the second striker's slot. Keane's the better player, Defoe will score slightly more goals. Interestingly, if Modric is deployed behind two strikers (I don't see him being put behind one, short of them trying to pack the midfield against a bigger team, which isn't Redknapp's style), Keane would also compete for that role.