When a human manager set a training and a lineup,the players will continue to play,and consequently to train till the team will be reassigned to some human user,when the roster will be changed with another roster,If a player remains in a team for a long time after the team became a bot,he could reach enormous level in training
How the fa system chose what are the players to free is incomprehensible,but that's antoher question
in the past i got a team botified in my league, he instantly get new players and plays them - and there was no team betwen it ;)
The system replace the bot teams according to an order that start from the highest league,to the lowest league,and in the same division level in a numeral order(for istance in a III division will be replaced before a team in the III.1 league than a team in III.16 league).So,when a team is in a very low category,beforee the system arrive to replace it,could pass very long time,and could be possible the player continue to have training in this time