I'd like to preface this by recommending Quick Manage mode to those new players who enjoy the 'sim' aspect of the game whilst still maintaining a little control. It's reminiscent of the old text-based sports management games; I've never played OOTP but I don't think you can manage games in that one.
I've quick managed quite a few games now, and whilst it's a great and important addition to the game, the mode needs significant work. The great thing about this mode is that improvements would be relatively easy to code and test (as in relative to improvements in other modes).
There are a couple of dealbreaking issues and several must-haves. Here's a list that I came up with whilst playing a game yesterday.
Thinking of creating my own version just for fun now.
Also, not related to quick manage, but switching between quick manage, full manage and full control should be possible. Presently you can't switch from full manage to the others and vice-versa.