I agree to a certain point, but Pop has to give them playing time to see how effective they can be. Bonner, despite his limitations, knows his rotations and has lead the league in 3 point shooting in the past, so it is worth seeing how he'll perform in spurts. Again, he's the 4th or 5th big. He has to be played some, if for no other reason than to spell those ahead of him.
Ayres, well, he's the 6th big on the team. No one should really expect anything out of that slot. The only big negative is he's being paid too much to be the bottom of the big totem pole.