Kings fans would not react well to Kennard after Stauskas, as irrational as that may be.
I agree about Collins. Collins and all "true" centers like him (non-transcendent, no-Shaq/Hakeem types), at this stage in the progression of basketball, is just a body. A placeholder to be surrounded by actual valuable players at the other positions. There should only really be 60 immobile, non-3pt shooting centers in the league, 2 on each team, just to suck up minutes and "banging in the post" energy for more valuable players during the regular season. Collins did shoot high 40s from 3 last season, but that was on such low volume that I'd lean toward discounting it entirely, especially trying to translate it to NBA range.
The on/off splits and other true value stats will probably show very little difference between centers 4-60 in any given season. There may be a very small number that are significantly better than the rest, like a good-FT-shooting version of DeAndre Jordan or Andre Drummond that miraculously comes around every 5-10 years. I am biased, but Harry Giles is more likely to separate himself as a center down the road than Zach Collins, IMO. Of course, Collins is the much better player right now, 1-2 years removed from Giles's ACL tears.