I think we had plenty of pressure. Problem was indeed as you say blown coverages and J. Winston kept evading a lot of stuff to buy more time. For that matter no coverage works very well when there's no pressure. It's not just exclusive to zone coverage. But again in my opinion I don't think lack of pressure was our problem.
He best thing that could happen is getting a stud DT there then also get the QB they want with that WA pick. But do they take a chance hoping the QB they want us still there. There is a lot of QB needy teams. Not sure we can take a risk waiting if we feel the guy we want is there in the first. A lot though can change If there is a DT in FA we can get.
Not just about using zone 90% of the time but at least dissuading coverage shells, sending different blitzers even if you're only rushing 4 etc etc.
As you say, pose questions of the O, don't give them the answers before the test.