I'm assuming this was about the dreadful pass defense yesterday. So my comment was specific to what I viewed as the problem with the defense against the Bucs.
In general, absolutely, no pressure is a problem when you're playing zone defense. But that's true no matter what coverage you play.
Yesterday, Winston didn't have any more time in the pocket than he usually does (2.81 seconds). He was far less aggressive than he usually is (per NGS aggressiveness stat, which calculates how often a QB throws into a tight window). He had easy throws all day long. His turnovers were bad decisions, not due to a lack of options.
So when a defense has been giving up 245 yards/game and 7.6 Y/A, then suddenly gives up 456 yards, and 10.1 AY/A, I don't think the problem is with the scheme the team plays every week. I think the problem is the execution of the scheme.
Just to add onto the defense of the D (not that they played very well or anything, but still...)
17 of the 28 offensive points scored were in large part thanks to the defense forcing a TO in Tampa Bay's territory. We only scored 11 points on drives starting from our own territory. And that's been a huge problem in games where we can't get anything on the ground.