I could see that happening but it would be for players back, who has a tpe or cap space that large?
As a cheap backup who cares, also keep in mind teams can send back their own backup/trash player in a trade.
As for packaging him with shump or Tyson idk. Tyson is going to be hard to move because his contract is so large as is, adding Felton just adds more money to that trade. As for shump and Timmy both those dudes values are lower than they should be right now. If the Knicks run a system built to help roleplayers like the Triangle it doesn't make sense to get rid of the teams only two young roleplayers prior to building up their value in the Triangle.