In theory they maybe could have done better but this isn’t MLB The Show, sometimes you are a little bit limited in who you can sign in FA.
For example, we could sign a better SP later this offseason which could push Matz to a long relief role. A lot of one year FA SPs are going to want clear cut rotation spots. Since we traded for Matz, he doesn’t really have a choice in the matter. So getting a starting pitcher of his caliber to sign with us for that amount of money when he might just be used as a reliever might not be as easy it would seem.