There is one way to compare Price to Buchholz. If you are the manager and you have to hand the ball to one of the two, which one do you pick? Every other measure of "value" and "ROI" is nothing more than blather and mumbo jumbo. Building a team is not exactly like building a portfolio of assets. There are so many other factors and dynamics at play. When building a portfolio of financial investment assets, there is no possibility of one asset making the other asset perform better or worse as is often the case with players. There is no ballpark factor. Camaraderie is not a factor. In purchasing a financial asset, no one would overpay for one asset because he got other assets below market value. Baseball teams with lots of cost controlled players like the Red Sox will have more budgetary flexibility to pay more for a big ticket player. That doesn't happen in financial business. Also, a big market rich guy would never pay more for a stock or security than would a small investor like me. This happens all the time in baseball. Applying these financial measures like ROI to try to determine definitively which players are more valuable is silly as they don't fit when measuring human capital. There is one measure that is definitive. Ask who you would want to hand the ball. The answer will tell you which guy is more valuable.