I have seen all of McCord's games since he went to Ohio State (and really all of their games the last 4 years). To give you some background on his skillset and why he left...
McCord in his 3rd year was in a QB battle with Devin Brown (2nd year) right up until the first game. There was a portion of the OSU fanbase who wanted Devin Brown to start because he provides a dual thread option as a runner. When the season started, McCord didn't exactly light things on fire vs. Indiana and as is often the case, the backup QB becomes a fan favorite.
In a vacuum, his stats look good, but he has a tendency to be streaky with his accuracy. He often starts slow in the first half, but then plays much better later in the game. He threw an early pick against Michigan that set them up with first and goal early in the game. He was also pretty bad against Notre Dame in the first half and then played great down the stretch. His arm strength is good and he can make every throw on the field, but he gets panicky when there is pressure.
At OSU he was throwing to Marvin Harrison Jr (Biletnikoff winner), Emeka Egbuka (projected 1-2 round), Julian Fleming (5 star WR recruit), Carnell Tate (5 star WR recruit) and had Treveyon Henderson (1-2 round RB) and Cade Stover (NFL TE) as his options. He had a solid year at OSU, but their standard is ridiculously high. He threw 17 less touchdowns than CJ did a year earlier. 11-1 is great, but he had a very talented roster. OSU hasn't lost more than 2 games in a decade. Losing to Michigan and calling it just another game didn't help his cause, but the fanbase was way over the top in criticism.
Kyle wanted to know that he would be the starting QB over Devin Brown next year and Ryan Day did not give that guarantee (even in the recent press conference before bowl game). I think it was probably smart on both sides to split as he only has 1 year of eligibility left and I don't blame him for seeking assurances that he would start.
Overall, he's a solid QB who can make every throw. He probably will improve with a year of starts under his belt as well. I just hope he gets good protection from the o-line next year. By all accounts, he is well liked by his teammates, but it does sound like his father can be a bit of a pain, but nothing that detracts from the culture of the team, etc.