Sean Lee may have the best instincts that I have seen in a player. He finds the ball quickly, and has an uncanny ability to create turnovers.
That being said, he is also patently unreliable since he cannot stay healthy. It's a shame that someone as incredibly mentally gifted as him can be as physically flawed. The gifts that Lee has mentally cannot be taught. He can influence others to study harder and prepare better, but there are some people out there that are a cut above in terms of being able to see and feel what is happening on the field of play. Peyton Manning, Joe Montana, Emmitt Smith, Steve Largent, Ray Lewis, Paul Krause, etc. Lee is on that level. The problem, obviously, is that physically, he's on the level of Sam Bowie.
What a shame. It really sucks when a try hard guy just cannot physically withstand the rigors of the game.
To me, I would put Holloman at MLB. With his ball skills from playing safety in college, he has the skills to play a Tampa 2 style MLB. Without Lee, I really worry about the run defense.