I think eventually we will see a starting lineup of Felton, Shump, Melo, Amar'e and Tyson, but with the lack of depth due to injuries to Sheed and Camby, STAT and Tyson need to be rotated. Amar'e will most likely be coming off the bench for the foreseeable future.
I agree that the current starting 5 isn't ideal with Felton, Kidd and Shump having to guard positions 1,2 and 3, but I don't think Novak is the answer. Shump (who would probably be the one to go to the bench) brings great energy and intensity on D which is needed to start games.
Don't know about adding a forward to start games (either a SF to keep Melo at PF, or a PF so we can move Melo back to SF) being a possibility. Not sure we have the pieces to get a player of starting standard. Would definately be in favour of getting a big or two with some athleticism and youth to give us more rotation down the back end of the season keeping Sheed, Camby and STAT as fresh as possible for the playoffs.