Actually would be funny, I remember when I was between 8-18 or so I had a team that I always played against, either was CL, Cup or League, I stole him like 6,7 Leagues and few Champions Leagues as well, he did beat me like twice as well in CL final or semi-finals so yea, was fun.

There could be some stats against the teams you meet the most.

Probably would be a bonus as well for high level players cause for them is more likely to meet and somehow I guess will connect the managers in a positive way.

BTW Cheers to your dad!