Teams: Parma, Bohemians, Cracovia
If each player in the world could be developed into a leader, into an experienced confident footballer, into a person with winning and strong mentality in the same time, by the same difficulty, then, I would partially agree. But you know this is not the reality. They are all different, the players. Some are old, some are young, some have played 10 seasons on top, some have just 5 games in the first division under their belts, some have the talent, some don't, some are shy, some are loud, some are born leaders, some are born losers, some don't have winning mentality yet (but could gain it) and some will never have it.
And Karel Jarolím has got a squad which is talented - yes - but lacks experience and lacks leaders with winning mentality. And apparently it's not easy to make a leader out of someone who is not one. To create the winning mentality out of nowhere is not so easy. I think it would be completely different with the help of 2 experienced guys. And that there already are 2 experienced ones that should do the job? Vlcek is way too shy and will never be a leader and Lukas Jarolim is not the one either.
Maybe it's Karel Jarolim's fault also, maybe mainly, but that wouldn't be a reason for me to sack him anyway. Why should be the mentality developed just by the head-coach? There must be a team of people taking care of everything. It's not just one person. And otherwise Jarolim is a good coach. Sacking him would be a mistake IMHO. This problem should be solved by a few (not many) changes in the squad.