His problem (and many others on our team) is poor technique exacerbated by poor coaching strategy.
There are tell tell signs if a defender uses the proper technique to stay in front of his man (besides us seeing him stay in front of his man) and I don't see it with the majority of these players.
I'm fully confident that if hired, I could provide immediate dividends by teaching this team how to play defense. As a coach it really pains me to know that these "professional" coaches can't even get their players to display proper defensive fundamental techniques.
Just put the spotlight on a Tom Thibs team and watch the defense.