This is something I noticed when I went through the results as well, for an exampel: Man.Utd 2 - 1 Arsenal (1th leg) then in the second leg Arsenal won 4-1. Man.utd manager present at both games, the Arsenal manager wasn't. Are more examples, but it could just be randomness or coincidence.
Anyway, good result !
It's good to tank a season or two, of course there are always pros and cons. But if you decide to tank this season, have in mind that you will not be able to participate in the CL or have any luck with the CUP draw (could end up with sharks again). Also make sure to have enough money for wages, renew-conctacrs and facility upgrades.
I will be force to tank another (or two) season to avoid the present lvl 8 teams. Even if my team is 75% better then theirs, I still get smashed.