Kind of surprised by this, but extremely good news for Derrick to be on a one-year deal, if it is guaranteed. That Bartelstein --> Chicago FO relationship surely helped in this case.
Very deserving for as hard as he has worked to get there.
Bartelstein is slowly becoming arguably the most influential agent in the NBA - and teams are more than willing to do him small favors - like taking a client at the league minimum into an empty roster spot - to curry favor.
(Also the Bulls backup PG spot is a nightmare and Walton probably has a very real shot at it)
Saw this on HoopsHype
That seems more likely to be the case.
FYI, his contract is non-guaranteed.