Ian Happ has always been really good against NL Central rivals like Pirates, Reds, Cardinals.
But I would guess that he has always been an average to below-average player against the rest of MLB. That's just eye test though
Gomes, Sub 500 ops
Amaya, 500 something ops
Maybe the Cubs should have kept Contreras, who is aging like a fine cigar, .826 OPS last year and .938 OPS this year
For a cheaper price than Ian CrHapp