I know this was talked about in a different thread but under Monty I thought he was just awful. But I also look at the circumstances, learning a new system on a team that was also trying to learn a new system. He's been much improved under Sacco and the Box + 1 which suits his game much more. Frankly it's easier to process and he's reads have always been just so-so.
I don't like to say he's a 3rd pairing guy, to me he's like Carlo in that he's a No. 4 but like Carlo, has his limitations, but they are different limitations as they are different players. I don't think he has any business on a top pair, and I'd say the exact same thing about Brandon Carlo. A No.3 D-man you can elevate to the top pair and drop the No.2 down. It should be avoided with limited No.4's like Zadorov and Carlo. D-corps need to looked at more like Top 3/Bottom 3 with the 2/3s being flexible between them, and the 4/5s being flexible between them. You got to have some flexibility on your D corps as injuries will happen.
We also don't take into account how much of his mental errors are fatigue related. This team spends very little time in the offensive zone where D-men can catch their breath. Always back-peddling, always defending. So when you combine a so-so hockey IQ with the fatigue factor, it's amplified.
I disagree with the steep decline though. He's a thick player. Think OV, think Lucic. Those guys can give and take the physical punishment. It's the guys who play hard who don't have the physique to do so who break down quickly as they get older. Doesn't make it a great signing however, not a guy I would of hitched my wagon to.