There's a set number of times a team can do it during the year, presumably to a) stop clashes with leader's jersies at the GTs and b) to allow sponsors to change it to support a specific marketing campaign.
It might only be one change a year, but frankly I can't be arsed looking up the UCI rules on this.
Yes, I'm sure it's only meant to be one change in a season from the times we've done it. Maybe they get let off as the tdf is an enforced change from yellow. Who knows though?
There's a set number of times a team can do it during the year, presumably to a) stop clashes with leader's jersies at the GTs and b) to allow sponsors to change it to support a specific marketing campaign.
It might only be one change a year, but frankly I can't be arsed looking up the UCI rules on this.