"Blunion
I don't like this idea at all, if it were allowed, managers should be given an option to not have their suppliers displayed anywhere on the staff's clothing.
I am currently keeping my suppliers a secret from everybody else in my league as the combo has given me two championships in a row, once in Pro and once in Elite, and by the end of this week a third championship with my current supplier combo.
Obviously your competitors from the Leagues you've been trough are not very commited in discovering that "magic" combo, you try in vain to hide.
Cause if anyone cared about it or thought that "magic" was the reason for your success, by now it would not be secret anymore.
A simple periodic and regular glance at your team's history or League News would reveal it through the contracts. For whoever is interested....
There's no way you can hide it, buddy :)