Am I correct in thinking that both these players are just over 16 years old? While it's exciting to get a talent like Sano, it's also something of a commitment to making a potentially difficult decision a few years down the road if the player turns out to have a somewhat lower ceiling. I forget how many years these younger players can remain off the 40-man roster, but at an age of something like 21 or 22 you can be in the position of deciding whether a player, who is younger than some of the college guys you are about to draft, will ever make it or not. Too many of these and your 40-man can become a little clogged with players who are not close to making a contribution to the major league club, and this can limit your maneuverability for trades or for callups. Or, the alternative becomes that you invest 5 years or so into a youngster and then wind up cutting him anyway, only to see him develop eventually into someone's fourth outfielder or useful relief pitcher, or even better.