Yep, when I start handing out qualifications anybody who isn't going to be needed constantly for other duties gets the Repair qual. It pays to have some crew who are dedicated just to that function if possible. And they're always assigned to that "station" any time we're about to see action.
That way if they're needed, it's just a matter of clicking to get them started on something, and not trying to transfer dudes in there in the middle of whatever else is going on.
The one thing that always used to get me was the silent running thing, I'd forget about it and wonder why nobody was working on plugging all those darn holes in the boat.
"But you told us to be quiet, Herr Kaleun!"