Rico excels at keeping tempo - he's a great midfield player who - by his presence - means that we outnumber the opposition in mid.
Rico too seems very good on defense - putting in tackles and getting back into defensive position.
Rico does not, however, have a consistent killer pass at all in his locker. His forward passing and crosses are average.
Still - I like Rico at right back mostly - he's fast, provides good defense and is able to help us with ball control - but he's not top, top class. At this point, I think that Rico is a valuable squad player, possibly a regular starter as we can't have world class at every position.
To put it into perspective... is Rico a lock for the England squad in the upcoming Euros? - I doubt it very much.
Rico is a very good squad player - if he wants more - then let him go and Godspeed.