Actually that's what I also thought of, they are thin at the 3 kayA jaylen brown Ang 3rd pick. If I recall correctly so crowder Lang Ang legit 3. Apart from the free agent turner.
What I meant by thin is Brad Stevens only relies on Crowder and Turner at the 3. But they actually have quite a number of rotational players at the 3... Crowder, Turner, Young, Hunter... and Smart regularly plays at the 3 as well. So you have 5 guys in that position. Immediate need is rim protection and outside shooting. Brown is 6'6" without shooting. Pwede rin naman si Murray na lang. More or less the same height who can also play the 3... but with shooting. Even Buddy Hield can play the 3 in Brad's system. And he is an excellent shooter as well. So you solve 2 requirements.... shore up the 3 and shooting.
I forgot to mention Jonas Jerebko also plays the 3.