What a contract-year bounce-back from Pionk accomplishes more than anything (or less than anything depending on how you look at it) is Chevy giving him a new contract (which could very well happen in any case). In the first year of that contract the bouncebackitis will be magically cured, he will revert to the familiar persona of Donkeypionk, and the team will be stuck with his amusing cartoon antics for another 4 or 5 years. Maybe that does equate to "fine" in Chevy's mind, especially in the likely event he's left with only scraps from the free agent market. Of course, a scrap might still be better than Pionk, and a helluva lot cheaper.
Playing Heinola on the right side kinda gives the coaches a built-in excuse to say, "He wasn't quite doing the job so now he's 7D." Playing him on the left gives him his best chance to succeed. They probably already have an extra-tall chair in the pressbox for Stanley so no adjustments would be needed there.
I saw somewhere (maybe here) that one of the new assistant coaches was director of analytics at one of his NHL gigs. Hopefully it wasn't just a figurehead position and that he actually learned a great deal about how to compile, understand and use the numbers.