it's always attackers, right? bloody divas...sack one of them, train others till they drop. that'll teach them.

its safe to ignore. it does come in to play but... too many other more valuable things do too. recover if in red, for superstition. or sack that whiner. defo cheaper than to get them hooked on blue pills.

try opposite sometimes, fully boost everyone. i did only twice in important games and it backfired both timrs, got 2 very disappointing draws, one in cup semies, one even more important in asso finals..wings with no will to run, ST that pass back while alone with GK, uninspired MCs...think it was up to and no more than 8 SoT, with 1in net, if lucky.
tried same this season in safe environment, same thing: looks like if you spend 1-4 blues it has no influence. 5-10 some, maybe.. impossible to isolate. using more than 10 boosters per game ... dunno, have not played enough such games yet, but looks like it's just asking for trolls.