Their three guards are
SGA = 6-6 200lbs
C Wallace = 6-4 200lbs
A Wiggins = 6-4 190lbs
There is no way any of those guys have the strength to handle Jaylen or Tatum. Play bully ball. Get some of those Jaylen post ups. Look to drive those guys and put them on your shoulder. Wiggins isn't much of a defender. SGA is more of a team defender than a stopper. Cason is good on-ball but he'll be on one of the guards.
Dort is the only guy with the muscle to stay with Tatum or Jaylen and Dort is only 6-3. Beat them up.