Call me a pessimist if you want, but the Rasheed Wallace signing was definitely made with a "this could be KG's replacement" feel to it. The team didn't hesitate to throw the third year to Wallace, which we all know, was too much to give to him. Wallace has one good year left, tops. The Wallace signing had the "this is a desperate move because we don't know what will be happening with KG" feel.
But, nonetheless, sure, I'd to have Rasheed coming off the bench as a sixth man power. But, if KG goes down, having Wallace starting with Baby coming off the bench, which is where he should be, isn't all that bad. But, remember, Wallace only has one good year left. The other 10 million of Wallace's contract is going to be spent on placating the team for next year, not for his skills.