I'm not going to reply and be stupid like usual, but:
a) Ferguson is about our best ODI batsman after Ponting and Hussey at the death
b) Hussey still has a place in our limited overs side, and Tests if he can regain form this summer
c) Hussey's ODI average is inflated by lots of not outs
d) Ferguson won't be losing his strike rate or whatever was said.
e) Most important. A batsman is not good or bad because of his 6 hitting ability in One Day and Test Cricket. Who cares about Twenty20 anyway?
f) Just a quick note. You can't say "Ferguson is only a good 50 over bat". He hasn't had a chance to play Tests yet, and he hasn't kicked on in First Class cricket yet, averaging mid 30s last time I checked. For a youngster, that's pretty good, especially with the quality of cricket and bowlers in Australian domestic cricket. He will average over 40-45 with the bat in FC at the end of his career. 50 is easily achievable for him too.
IMO, it's out of Clarke, Watson and Ferguson to take over Ponting's number 3 spot in the Test side, and add White into the mix in the One Day team. Hopefully Ferguson will get it in One Dayers, at least.