Yeah, I agree! That would seem like a good lineup for Boston; but, I actually thought that the Gordon Hayward contract would mean more transactions to be had for GM Ainge and the front office; a la sign and trade with Jae Crowder, etc; so, I have a hunch that Boston's not done wheeling and dealing.
I do think that Jayson would fit well with the 2nd unit. Less pressure, more opportunities to score with Jaylen Brown and company! I guess it all depends on how fast they want this kid to develop. He'd be pretty useful weapon for Boston off the bench for sure!