The Oilers aren't the only Western Conference Team with salary cap issues. As new GM Ken Holland said, all teams have salary cap issues.
What you do about what you've got is the important thing. The Oilers could use a Tyler Myers but can't afford him. They definitely can't afford any of the forwards mentioned here.
The strategy though is to understand other teams salary and cap restraints in order to shape a trade that is mutually beneficial.
Whoever the Jets trade with, will need to move some players around. That's where pro scouting becomes a vital tool. It's the tool, in Edmonton that needs replacing. https://www.sportsnet.ca/hockey/nhl/analyzing-three-big-questions-facing-winnipeg-jets-off-season/