They're 35 or younger--and they've got serious juice: sometimes, being young and smart just plain beats the hell out of being, shall we say, only more experienced. As in the cases of ...(TSN's POWER 100)

Baseball's front office whiz kids. Andrew Friedman (29), Tampa Bay; Jon Daniels (28), Texas; Ben Cherington (31) and Jed Hoyer (32), Boston; and Josh Byrnes (35), Arizona. Theo Epstein paved the way for a major league youth movement in front offices across the sport.

David Berson, 33, senior V.P., program planning and development, ESPN. He's the kind of sharp young visionary who has made the Worldwide Leader in Sports the worldwide leader in sports.

Scott O'Neil, 35, senior V.P., marketing and team business operations, NBA. He heads the division that deals directly with teams, supports team marketing and shares the best ideas among all 30 franchises.

Troy Vincent, 34, president, NFLPA. Spend any amount of time with him off the field, and you realize this: He's an impressive guy with a future way beyond covering receivers.

Mike Mulvihill, 33, V.P. of research and programming strategy, FOX Sports. He provides research and analysis on all of the programming on FOX Sports, not to mention the sports programming FOX is interested in acquiring (which, given Rupert Murdoch's appetite, usually is considerable).

Sam Presti, 30, assistant G.M., San Antonio Spurs. We'll connect the dots for you: He works for R.C. Buford, and the Spurs are the best-managed team in the NBA, if not all of sports. What better place to learn the ropes?

Ron Wechsler, 35, senior director of development, ESPN Original Entertainment. If it gets greenlighted at ESPN OE, then you can be sure it's going to be seen by a lot of eyeballs, if for no other reason than the marketing muscle that backs ESPN's ...