In addition, you may limit this kind of access to no more than 4 weeks during a season and / or limit the number of Holiday Accounts one player may assist with to no more than 1 per Season to make sure nobody can cheat.
Also, the "holiday mode" has to be triggered by the player who´s going on holiday, in advance, so nobody can kidnap a team to cheat in key games without the oriiginal manager realizing.
I´m not sold on the Access Key part of the suggestion as I think it would take a third, new kind of password, but a holiday account regulation is overdue.
Zwei Dinge sind unendlich, die Dummheit und das All...