Well personally I think BB should give a bonus to teams that train and a malus to teams that don't train cause training means to be less competitive. It should be compensate by transfer list but often this is not the case, it seems more convenient to have a strong team (more merch, income, ticket holders).
Also tanking should be limited, I love the green arrows on Friday and I love cause is "difficult" to train and it must continue to be difficult otherwise the stronger teams will continue to be the strongest one, the gap should be compensate by trainings.
Regarding biology research dept I didn't understand what you mean; as far as understood this feature will reduce the drops in our older players
1990-2022 Stalinorgel - https://www.youtube.com/watch?v=pV-Xppl6h8Et