Neil is a good frontman, moneyman, historical constructionist and cruise activity captain that gets things done. Meanwhile the far thinking real captain is in the bridge with navigators. As far as Astrophysicists go, it is good to have a Carl Sagan type on hand.
Charisma can't be bought. In that realm, Neil beats Carl.

My favorite is gone already, Richard Feynman who taught at Cornel with Carl.

Picks can be bought

I use picks so rarely since I have a natural little finger nail I use as a pick. My bain are socks that are supposed to match.