Oh god I can't wait until 2016 when we miss the playoffs by two games because we just had to let Kyle Schwarber take his lumps. That's a terrible way to run a baseball team. If the kid is worthwhile, he'll make himself the best option. Giving them the time they need is what the minors are for. No you dolt. You never "know" that the kid is the absolute best option right now. That is the point. Your absurdly stupid criteria for allowing a young player to take over a position is the Dusty Baker method and the exact wrong way to run anything. Notice how I said "have good reason to believe" and you switched the argument to some stupidity about "know." You never "know" what a baseball player is going to do. Based on MLB stats, minor league stats and scouting reports, you should always have a projection of what you expect every baseball player in your organization to do. The problem with Baker is that he refused to put young players in the lineup when those projections said they were the best option. That's not at all what I'm arguing for. If you think Baez is one of your best 8 based on that kind of projectioning, or even if you think it's close, sure, put him out there. But if you think he's going to strike out 40% of the time for another 200 PAs, then send him back to Iowa to try again later, a la Rizzo. He'll be 22 all year, it's not like that would put him behind the curve or anything.