MAVS NEWS:

[Smitty]

Exum is going to have a hard time cracking the regular rotation when everyone is healthy.  Naji and Grimes are playing starter quality basketball right now.  Any minutes he would get would be at the expense of Dinwiddie in the regular rotation.

As it stands now, you're probably right. This post was made 4 months ago. I'd tweak it a little with what we know now, but it's still a good baseline for a 10-man rotation. If we drop it to 9 it probably works out even better for the guys you mentioned, with Grimes/Naji/Dinwiddie getting a bit more off the bench.