Baseball has already seen an infusion of younger and younger players, as Rocks describes. Several of the best rookies in the National League this past year weren't yet 22. Rocks, a certified agent since 2011, also suggested that the fixes aren’t only in changing the rules, changing the Collective Bargaining Agreement, or changing how teams are constructed. The players must take responsibility and change, too. They have to prove that they can be viable contributors in their mid-30s and they have to do things training-wise to prolong their production. If front offices are using data to direct spending, then players and teams can be more proactive using data to extend careers – and some teams are. If front offices are using metrics to determine future production and value then players can respond by shaping their games to meet those metrics. The game has already seen that with players embracing OPS over batting average, for example.