Boswell writes about why the Nats won't (and shouldn't) extend Rendon:
https://www.washingtonpost.com/sports/if-stephen-strasburg-staying-means-anthony-rendon-leaving-the-nationals-will-be-fine/2019/12/10/9749d0d0-1b80-11ea-8d58-5ac3600967a1_story.htmlHe basically says that Nats really shouldn't even spend $25 million on Donaldson. He says they should spend the $38.6 million left under the luxury tax threshold on a first basemen, second basemen, third baseman and two new good relievers (the later part of Martinez's wish list). He notes:
"To illustrate what all that might cost, the Nats could probably fill those voids with 2019 Nats — Ryan Zimmerman, Matt Adams, Hudson and either Asdrúbal Cabrera or Brian Dozier — for $20 million to $25 million. Then they would still have $15 million to try to upgrade their historically weak bullpen. Now that makes sense."
He also notes that the Nats will have to replace or re-sign Eaton, Sanchez, Doolittle, Kendrick and Suzuki after the 2020 season, and pay Turner and Soto a lot more a few years thereafter.
I would support bringing back FACE, Hudson and maybe Cabrera and a few good relievers.