Zellweger is still pretty poor at the only defense thing. It would be prudent to develop him properly (unlike Fowler) in the hopes that he can have a higher top end. He’s more sheltered than any other regular and still has poor possession stats. Not what you’d want on a top pairing. Let him develop properly.
They’re going to want a lot more from a top 4 defenseman than hitting people. It’s almost unheard of for that type of defenseman to be on an NHL top 4 in less than 3 years, especially when they’ve yet to play against men, or play an NHL length season. When he was asked what he needed to improve about his game, his self aware response was “everything”. Zero reason to rush this guy. Regardless, he’s got zip to do with Fowler, which was I was responding to.