Gotcha but that still doesn't change the fact that Marinelli is going to drop both LB's most of the time. He might send an occasional LB, but most of the time he rushes 3 and drops 8.
If you want to talk in hypothetically and talk about what some other defensive coordinator might do, then that's fine but it isn't going to happen. That hypothetical situation is why I said I'd rather send Jaylon Smith than Watt. If that is the case then you'd have Watt dropping into coverage which would be insane.
Basically, Lee is way, WAY better in coverage than Watt and, IMO, Smith is better getting after the QB. So... Watt would be silly, even in that scenario.
In the real world, Watt didn't fit this defense at all.