i don't know if they're instant contenders. they need to mature a little bit. their depth will be suspect. thornton is great but still growing, kaman is ok, mobley is fine but nothing special. i don't think it's critical mass for contending but rather a second round exit from the play offs...
Depth will be a concern, but Kaman is ok? 28 teams would piss their pants if they got 15.7-12.7 and 2.8 blocks from the center position. If he could stay healthy they have the best 4/5 combo in the league. Hell they made a 2nd round exit 2 seasons ago when healthy with rougly the same roster sans Davis.