What constitutes "buying a championship"? It's an interesting question. The Marlins top position player in 1997, by bWAR, was home-grown Charles Johnson; #3 was Gary Sheffield who wasn't cheap but they acquired him by trade way back in 1993. Only 3 of their starting 8 position players were FA signings, although 2 did pretty well (Bonilla and Alou). On the pitching side, they were led by Kevin Brown who was indeed a FA signing, albeit a year earlier and he was probably considered more of a workhorse than a star until he excelled for the Marlins in '96 -- his 3-year Marlins contract was relatively conservative compared to the megadeal he signed with the Dodgers later. Alex Fernandez was their biggest FA signing of all, and was solid in the regular season although due to a shoulder injury he didn't even pitch in the World Series that year (and indeed his career was pretty much done after that). And I'm not sure how to count an international FA guy like Livan Hernandez -- he was a high-profile Cuban defector, of course, and got a big contract for an amateur, but it wasn't very big at all compared to domestic FA deals (or even the top domestic amateur deals signed in 1996 -- hello, Travis Lee! ). After signing, the Marlins even developed Livan in the minors for a season too. Overall, they did jump to 5th in MLB payroll in 1997, although that same payroll would have only ranked 11th in 1998 -- so they were a bit of the inflation curve.