Want a combative stat? We've won 2 Cups with Maatta. Boom. Done.
Couple of things there.
Olli's play is declining mainly because the league is getting faster while theres no real uptick in his strength/energy.
He had a notch better support with the likes of Daley, Lovejoy, Cole but he was a notch better himself and the league was at a pace he could keep up with.
The declining part comes in where Olli-Schultz would be a good pair in '16 and '17 but Olli can't anchor an offensive guy on defense anymore.
Olli's the same as JJ, an overpaid 3rd pairing D-Man.
In the end, it's terrible luck with Olli's obvious energy issues probably due to the cancer surgery and was a bad gamble on him vs pushing a guy like Cole out and letting Daley walk.