Not necessarily just to benefit MLS clubs, but it seems dumb for Caribbean clubs to get their players together in their off-season to lose 8-0 to América or something. Group stage: March to mid-May Jamaican/Trini clubs are in late-season form and let's be honest, this is the best they can get. Mexico's qualification won't be as messed up as MLS' is now, as the just-finished Apertura will qualify half of the teams. Knockout: mid September to mid November Mexican teams have been in season for two months by now. Obviously MLS doesn't want this interfering with playoffs/playoff hunt, but if you want it moved you have to deal with some overlap. Space out the MLS playoffs a bit and go for the dream treble of MLS Cup, CCL and Club World Cup within 2 months.