What to do with the messes Peter Chiarelli made? Ride them out

Peter Chiarelli signed or traded for a number of players who are underperforming in terms of their contracts but are still contracted for at least next season. This list includes Milan Lucic, Brandon Manning, Ryan Spooner and Kyle Brodziak.
What should the new Edmonton Oilers GM do with their contracts, especially as the Oilers are going to be pressed up against the cap in 2019-20, just as they are this year?
In the recent years, the Oilers have used buy-outs to deal with under-performing player