Are facility changes by the AI dynamic?

[bendixkunert2]

Never really noticed it before but can anyone answer if the AI changes the facility levels of the teams over time? I'm a couple years into a save and noticed that a bunch of teams received a decrease by half a star to their training facilities. Almost always teams from weaker leagues. Does that have to do with the note you sometimes get that the facilities are not the standard anymore and these teams don't have the money to upgrade it? Is this normal that these facilities levels change over a save or a bug? Noticed a number of rich teams mostly from England received upgrades as well but more downgrades than upgrades from what I've seen.