A big plus (that I never really thought about until recently) is his size: 6'3" and 210lbs. While nothing remarkable for the NBA, still is good size for a point guard. According to NBA.com (which seems more up-to-date than bball-ref), has him taller or heavier (often both) than a lot of top guards in the league (Westbrook, Lillard, Paul, Lowry, Irving, Nunn, Dragic, Hero, Curry, Rose, SGA, Beal, DLo, Booker, Jrue, Levert, Lavine) and equal to or only 5lbs away from some bigger guards (Klay, Murray, Oladipo, Mitchell, Wall, Dinwiddie, etc.).
In next season's roster prediction thread a lot of posters (including myself) guessed Wanamaker will be out next year at least partially to make room for Waters (5'10", 175lbs), but maybe I'm reconsidering this now based on
some comments Ainge made recently about maybe why he's not looking to bring Isaiah back:“It’s a challenge with Kemba [Walker] and Isaiah, the size at the guard position,” he said. “That makes it tough, so I don’t think that’s a great fit for our team right now. But again, Isaiah has skills, he has talents that we could use — three-point shooting and scoring. But whenever you try to fill a hole, you’re creating another hole most of the time, unless that player is a two-way, big, solid player.
“We could use some of the things he does on a positive side. His size and defense are not ideal for our team because we already have a small guard we have to work around in some matchups,” Ainge added.
Always hear guys like Mike and Scal talking about how strong and tough Wanamaker is. Having a solid guy like that makes the switch everything style a lot easier. Even on switches, he's supposedly only giving up 10lbs to bigger wings like George, Harden, DeRozan. Being, a solid defender, he's not really a guy the other team can exploit by going at him (well you can still shoot over him, but you what I'm saying). Maybe he will still have a spot on the team next year.