Recipe for disaster. On offense you have to hike out at the half court line where some sf like 4 inches taller than you with a great vertical will guard you, then when they get the rebound they'll pass it up to that guy and you will have no ability to guard him whatsoever, so your best shot is to foul. Maybe they could put you in at the end of close games and that's it
It's a disaster if this is one's team's only option.
On the other foot, that SG defender isn't helping out on the boards, so if your team is effectively boxing out, and doesn't commit a turnover, it's still an effective play.
But yeah, I wouldn't recommend this person, being around, to help in keeping the leads, esp going into Q3 and Q4, where momentum change happens quickly.