yes, it is a slow game ....and for now my strategy is to build the arena and train my u21 prospects :)
if you want, you can make changes to your bench for every single match.... but why i should do the same? you want more users in buzzerbeater or less?! when i think i am ready to make bench changes every single match and have the desire to do it - i will do it without your permission or approuval :) for now i dont feel the need and i dont have the desire to think 2 hours (because i have no so much experience to act fast) over the question how to reorginize my team strategies just for one week..... and after a week to turn everything again back?!
and since i am not the first with such a request... maybe somebody has to listen what people want :))) everybody has his own arguments but with the option to have 2 possible friendlies it will be a lot better for many users...