He's been interviewed by the Browns and he will have a few more interviews coming up as he decides which NFL job he wants to take.
Chip Kelly runs a lightning paced offense at Oregon that is geared to wear out defenses on the college level with superior athletes who can get into the open field instead of more traditional skill-position players at QB, RB, WR, & TE.
I think it can work in the NFL. Not everyone has the stamina.
Its said that he'd fail because everybody in the NFL is a great athlete unlike college football but I disagree since there are always different levels of athlete in the NFL. Not every team can keep up with an offense with burners like Mike Wallace, Ted Ginn, & Devin Hester lined up getting up to the line of scrimmage to run the next play in less than 12 seconds.
With the right QB he can do a lot of damage as most defenses don't prepare to face anything like that in practice.