His last 3 games:
31 mins vs LAL, 22 points, 10 rebounds (6 offensive, 4 defensive)
34 mins vs ATL, 8 points, 11 rebounds (4 offensive, 7 defensive)
25 mins vs LAC, 7 points, 12 rebounds (4 offensive, 8 defensive)
Again, he obviously doesn't have Asik numbers, however he makes approximately 1/4th of what Asik does.
Gray has gotten extensive PT in the last 3 games. I think it could be a case of BC building trade value, and by no means is Gray explosive (you can't expect that anyways), but the guy has been a rock for us at the starting 5.