Tottenham Transfers...necessary?

So it seems the transfer market has been taken to a higher level than most can compete in by City. As a Tottenham fan, I'm a little upset, hoping for new players that will make the squad better is always a highlight of the summer. But as I think about it, do Spurs really need a change? Woodgate, Corluka, Modric, Keane, Defoe, Gomes (I support him...), O'Hara, Lennon, Jenas, and Huddlestone seems like a relatively solid squad with talent all over the pitch. Then again, I would love so see Crouch at the Lane. Does anyone else think changes are necessary?