Nothing was more important than the final CL group stage game that literally meant nothing. Clearly.
Lapsus memoriae, thought the final cl group game was against Juve. You might have a point but it's still understandable for me that he first wanted to make his own team work, develope chemistry before bringing youngsters into it.
Afterall, he said it himself, that he's sure b team players were gonna help but he's focused on his own team.
Also, seems Arnaiz is gonna take Deulofeu's place, Alena training with the first team, Valverde watching their mathces - it doesn't seem all black, to me at least.