Coggi would be awkwards for a time... But probably awkward in the sense of when Jerry Quarry was warned of Jack Bodell's 'awkwardness'...
Chavez, unless he fights in Argentina and has to deal with the same officiating as Eder Gonzalez did. Then he could knock Coggi out and still lose the fight. Otherwise, Chavez's superiority as a fighter would just be too much.
Chavez by late tko. Coggi was tough. He may even go the distance, but Julio is just too good all around for him