Rendon, Dozier, Kendrick, and Adams are free agents at the end of the season.
Sure, but why hold on to them? Might as well get something for them, even fliers on High A, or AA guys is better than nothing. The system isn't producing any pitchers, so move all of your players not locked up for 4+ years and get whatever you can. Eat as much cash as possible to maximize the return. You won't get blue chip prospects for guys with expiring contracts, but it's better than letting them walk in FA.