A huge reason why they are so good right now is that they got Teal, Meidroth, and Braden Montgomery (top 30 prospect) in that deal from the Red Sox for Crochet. That's as good as it gets - 2 starting big leaguers and a slugging corner OF with upside.
One more deal like that but more pitching prospect heavy? They'd be set. Probably the best farm system at that point with a lineup full of young talent already at the MLB level.
I don't think Martin will ever have a season like this again, personally. And I think the pitching market will be the same as it was last season.