I assume you're talking about Pfeiffer. A couple of close losses there. But the first thing I noticed was the type of offense, foul-drawing versus three-point shooting. You draw a lot of fouls at the expense of threes. So I'd run a minus defense, and six of your seven losses were against opponents that ran minus defenses. Also I'd run slowdown against you and try to minimize your foul-drawing advantage. Either you or your opponent ran slowdown in three losses.
I think you've either got to commit to more possessions (and more fouls/free throws) with tempo or balance the offense a bit more, maybe based on the matchup. Everyone should rightly be concerned with Swanson, ringing him with more shooters might help. Campbell could absolutely shoot more threes.