Re: Joss Whedon developing Marvel SHIELD series for ABC
The only real difference between a buffoon and someone quirky is how effective they are.
When you make the main character too awesome, the rest of the team becomes increasingly useless by necessity. There's only so much to do in a 44 minute show. If Gibbs/Coulson can do the vast majority of it, the rest of the cast is going to look buffoonish instead of quirky.
That said, this isn't a problem that Joss Whedon and Co have.