Sorry, that analogy doesn't work at all. It has to be a balance. Your "proven > prospects everytime" method isn't always the right way either. I still remember people in 2016 literally saying we couldn't trade Braun for just Cody Bellinger, because Braun was proven and Bellinger was just a prospect. Just imagine how that would have worked out now. The thing is, just because a guy is "proven" doesn't guarantee future performance, even over a prospect. Albert Pujols was "proven" at one time, as well. Guys age, things change. Sometimes, many times, the unproven prospect will outproduce the "proven" veteran in future performance. Not only that, but there are so many variables at play -- club control, positional considerations, trade value, budget constraints, etc. for any of it ever to just neatly fit in a box that proven players are the way to go and prospects are just prospects.