Mark Ella (57)
I think there's little doubt Cooper would have started more games under McKenzie if not for injury (although it was also pretty hard not to select Foley in 2014 with the Waratahs form in Super Rugby).
My main point was that people seem to remember that period as one where Cooper was the consistent starter but the reality was it was for less than half the tests McKenzie coached.
In terms of which coach most consistently selected Cooper as the starting 10 it was undoubtedly Deans where he was first choice for 3 years (although missed part of that third year coming back from knee injury).
But where did Cooper play his best rugby. Undoubtedly, with McKenzie. Both at the Reds and the few games at Test level were his best ones.