In 14 years as a Celtic, from age 27 to 40, Parish averaged:
31 MINS, .552 FG%, 10.0 Reb, 1.5 AST, 0.8 STL, 1.5 BLK, 2.2 TO, 2.8 PF, 16.5 PTS
That's with strong defense. Today, he'd start his career at 19 or 20, not 23 and have 4 extra years to accumulate stats.
Think of him vs Al Jefferson, Hibbert, Perk, Bargnani, etc. His skill set would translate well. Size and speed and reach . . . shooting touch. He'd translate well.