It was a good sub at the time, we needed the win. Which was huge for the team. Relax, we will survive with Diaz in Hakans absence. That's the strength of this team.
If Diaz knows he isn't getting subbed at 70' he will lift his performances. Wait and see.
I agree with that, becvause its not like we were getting over-ran or dominated. Pioli has done that a few times (i,e playing kjaer vs celtic) which has irritated me. But thats just me being hypercritical, pioli has managed 99 percent of situations perfectly this season