Your only away while group stages are on and first half of league season? Yeah your right I think. 6*/7* players will still easily do the job while your not there I think. Only downside is that some players lose morale, they don't get the full benefit of training... but with your quality you should still win most games easily. Just leave it in your preferred formation, which I probably assume it will be butterfly or 4-5-1 V or the dv8r 4-3-2-1. You probably still comeback from holiday and find your still unbeaten in the league.