Quarantine Question of the Day: You're 18 years old, off to college, & your roommate is a Celtic; Who is it?

Pierce, Bird, Russell, and Tatum back in their college days

Unfortunately we will have no recaps or Green Envy's for a while, so figured it might be fun and give people a distraction to debate in the comment section on a different question every day while we are stuck in this new normal.

Today's question:

You're 18 years old, off to college, & your roommate is a Celtic; Who is it?

Piggybacking off the Celtics' Who would each Celtics player choose as their roommate? video for today's question.

Here are the rules: You're 18 years old in present times. Well not coronavirus, quarantine present times, but pretend that the virus has been eradicated and it's late August 2020 and you're off to college. You can pick anyone who played for the Celtics past or present. They will be their 18 year old former self.

Here's where it gets tricky. They are all also living as an 18 year old in present non-coronavirus times, but they will still get drafted by the Celtics in their historical times. So if you choose Paul Pierce, you and he are both 18 year old college freshmen in 2020, but he'll still be drafted by the Celtics in 1998. If you choose Bill Russell, you and he are both 18 year old college freshmen in 2020, but he'll still be drafted by the Celtics in 1956. The college that you end up attending with them is irrelevant. This is about being roommates. They still end up playing their college basketball careers at wherever they played. Make sense? Well it doesn't really makes sense, but you get the idea hopefully now.

I considered Bird, but then thought a young Bill Russell would be fascinating. But in the end I did an audible and chose Len Bias. My reason was simple: I have four years to try and steer him away from ever trying drugs. Also seems like he was a really nice guy, so I'm guessing he'd be a good dude to room with. 
Who's your roomie? (You can list a few options if you like. I'm flexible like that. Ha.)