The day Mancini puts out a team to make up the numbers is the day before he gets the sack. It's not in the mans nature not to fight for every game!
Remember when Keegan left you could see it in his eyes, he had given up. The energy just wasn't there any more, he wasn't challenging for every ball with the players he was dissillusioned. One bright spot from that NotloB game was Diouf spat at the crowd several times and an Irish lad I was with got him back when he came to close to the corner, GET IN!
I'm not saying player's might benefit from more rest but we were never going to win this first time out, it was all about experience. There are alot of players who will have improved thanks to being blooded in the CL, this will benefit them domestically aswell in the long term. So long as there's a chance of success you have to keep fighting!