Pickett just need to work on basic boxing generalship.
The thing is way too many guys don't spar boxing in a cage, it's pointless because they are completely flummoxed when it comes to fighting someone where they need to cut off the cage.
Pickett needs to incorporate more body shots and to get closer in not that medium range you were talking about. Also he needs to cover up a bit better he gets tagged too much. I think a drop to 125 would be good for him especially since he has a victory over the champ