less than it was half a season ago
More than it was half a season ago because he's not injured.
If a team asks for a young player and a draft pick in return for an established veteran, I think some teams will prefer Bradley over Sullinger and some teams won't.
I think his value was over rated a half season ago. Once he came back and stunk on both ends of the floor, and let Felton abuse him, his value has really taken a hit. I find it hard to believe that any team would value him over Sullinger.
In all fairness, he returned from shoulder surgery on Jan 2nd, only to have Boston go on and win 6 of his first 7 games back. Rondo then tore his acl on Jan 25th. So they got to play a total of about 3 weeks together and Bradley was thrust into starting PG role, which is where he clearly does not belong. Thus, his play suffered.
He still managed to lead the league in fewest points per play allowed on defense, at 0.697.
He shot 40% from 3pt last season so he is capable and has a nice stroke.
He still needs to work on being more consistent with his outside shot and overall play (like most 22 year olds).
He will likely never be much of a playmaker but as long as he is playing with a decent PG he does not need to be.