With respect to Colborne, I've made my thoughts known regarding him in the past: he has a ton of natural talent due to his play-making and on-ice vision, able to seamlessly make passes through traffic, and he's good at protecting the puck. He is also as wide as the USS Nimitz with fantastic reach and can play in multiple situations due to his size and versatility. But he's a long-term project as he's a classic "gangly" type player with a body akin to Antropov's when he first arrived to the early Quinn-era Leafs. He'll need to get a lot stronger and work on his physical play to utilize his size more effectively. He does have the potential to be a possible first-line centre down the road but that would be contingent on him showing more of a deft scoring chance around the net as he has been a bit snakebitten in terms of goal-scoring at the professional level so far.
He also fell quite substantially on The List that Irish and I submitted over the past season, largely due to a fairly lacklustre campaign in Providence. But he'll be good one down the road, it's just going to take some time and a lot of patience for a big man like him to reach his full potential.