As a reminder, the biggest advantage a DPE this small provides is in signing a free agent after the deadline, because the exception doesn’t pro-rate (or at least not until around March 1st — I forget). Right not the difference between the DPE and the minimum salary for a 10-year player is quite small, only a couple hundred thousand. However, by the time the February free agency period arrives, the difference would be a couple million dollars, and might be enough to sway a player to Boston if he’s getting minimum salary offers from other teams.
It has very limited use for acquiring someone via trade, due to the small number of players who a) are on a non-minimum deal, b) on expiring contracts with no options, and c) make less than $3.3 million. The majority of these players will be late 1st round picks that had their 3rd or 4th year options declined. The most interesting of these to me is Udoka Azbuike, but that’s not terribly interesting.