By now, everyone knows that 12 players on the Seattle Mariners 25-man roster are rookies and that a 13th - Dan Cortes - is on the disabled list.
Four members of the new six-man rotation are rookies: Michael Pineda, Blake Beavan, Antony Vasquez and Charlie Furbush. Down in the bullpen, there's Josh Lueke, Chance Ruffin and Tom Wilhelmsen.
And current rookie position players include Dustin Ackley, Mike Carp, Travvon Robinson, Kyle Seager and Casper Wells.
Come September, the Mariners will activate players like Justin Smoak, relievers Shawn Kelley and Cortes, perhaps Chone Figgins - and may recall rookies Carlos Peguero, Greg Halman or Michael Saunders.
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Yes, the Mariners want to see all their young players. They also want scouts from 29 other teams to see them, because a team in desperate need of offense is likely going to have to trade for at least one productive bat, and that could mean dealing a package of kids.
John McGrath's column today can be used as a word of warning on moving too fast on that front. When Jack Zduriencik sent Mike Morse to Washington for Ryan Langerhans, Seattle had clearly given up on Morse. Now, he's batting fourth for the Nationals - and hitting .316 with 22 home runs and 73 RBI.
Langerhans is with the Arizona Diamondbacks AAA team. Oops.
From what you've seen, are their untouchable rookies? Are there young arms or bats you'd be willing to package in a trade?