Depending on how they use him he could put up some good offensive stats. Maybe with their grit and grind mentality they can get him to actually defend and rebound but who knows. Of course the more physical he plays the more strain it will put on that knee of his.
As far as his strength tho, as I said several times he should have had the ball in his hands more to me, only Kawi and Durant are higher than Parsons as a pnr Ball handler at the 3 spot with at least 150 possessions(And Considering Parsons played some 4 maybe only Durant is higher then). Butler and Barton are also higher but they played almost entirely at the 2. So if the Grizz plan to use him as a ball handler in a pnr heavy offense he could put up some nice numbers, it remains to be seen whether that will translate to wins though. But if he stays healthy and if the overall team defense/rebounding negates his weaknesses he could be a very good fit for them.
--Edit--
http://stats.nba.com/league/player/#...&CF=Poss*G*149