This is just another excuse,
Tired and fatigue is real but let's not forget we're competing against other 19 teams with pretty much the same condition, it's not as if we're the only one that isn't awarded some break. If smaller team can do it, why can't we? We played 1 extra match in EL? Hardly an excuse for our total meltdown on the first game of the season after 2 weeks vacation.
Squad depth : Teams like Everton / Southampton, / Spurs / Arsenal are probably on the same boat as us, they don't have depth to allow for rotation without sacrificing quality. If they can do it, why can't we? Switch the tactics to reduce running, change formation to a more compact so that you mark less, etc. Many things managers can do to mitigate fatique. If Ole can't manage it this early on the season then God help us when the fixtures getting busy.
It's one thing if the player's are gassed in 80 minutes, but they have been clueless since the first minute. You can be out of breath at 80th minute, but that doesn't make you unable to string a pass and play with a system in the first half. That's a totally different deficiencies.
Match sharpness is another thing, but also I find it weird that we're so lacking in it, our last game is hardly a few weeks before our first game. And again, other teams doesn't have this problem.
We can't beat CP not because of tiredness, but because we don't know how to break them.