You 're right @ ibangali
Let me explain
My reserves (RINOKEROS, lv12) is T11 friend with ZAF which is lv13 team.
Vardar (bobovski) is lv11.
Bobovski tried to lower his team by keeping some lower q (3*) players and 4 higher q players and adding some new from the beginning of this season
*** as he is -1 lv from me, those players we can see are +1 star

Click image for larger version.  Name: VARDAR team.jpg  Views: 79  Size: 46.7 KB  ID: 72136


ZAF is an old player (and experienced) who did a take over.
When he started, he kept some academy players so to drop quality at the end of the season.
So, he keeps his eight higher q players (7* players) plus those 6 very low q players.
As he is +1 lv from me, the players of this photo are -1 star (but you can observe how much lower is the lowest quality).
Click image for larger version.  Name: VARDAR ZAF.jpg  Views: 80  Size: 44.1 KB  ID: 72137

ZAF is a pro to that and he has already 6 trebles.
Yes, even if you do that, there is no guarantee that you 'll win the treble, it's just gives you more possibilities.
So bobovski also used this tactic but he was unlucky to be in the same competition with ZAF who 's doing this better

* Of course the price for that is to have a small roster as those six positions for low q players are permanent.