Dead money is dead. It's not resurrected by keeping Zeke for another year. All you can do with dead money is kick the can down the road. Kicking the can down the road at the cost of throwing good money after bad onto the pile of cumulative payout is just wasting more money.
If we don't keep Zeke this year, we save the 10.9mil salary we don't pay him in cumulative future cap hit. You save money you don't spend.
If we want to push cap hit from this year into the future, we should kick the cap hit down the road of players we plan to keep this year.