No. Neal has been the primary beneficiary of Anderson's absence.
http://www.basketball-reference.com/.../gamelog/2011/
Perhaps even the 9th. After all. Neal was the 10th man before Anderson went down. If Udoka is fit enough to play 12-15 minutes every night, I would expect him to become the primary backup SF (Anderson's minutes). This will allow Manu to play nearly all his minutes at the 2.
We'll then have to see if Manu's overall minutes will go down in this scenario. If his minutes remain steady, then Neal will find most of his minutes in garbage time. If Manu's total minutes are reduced, Neal will be able to remain on the fringe of the rotation.
I'm more concerned about the possibility of seeing Udoka as a smallball PF. We've seen a significant reduction in smallball this season. Even with the reduction in smallball, we've seen how difficult it is to get sufficient minutes for five bigs.
Using Udoka as a smallball 4 will make that situation even worse.