No he wasn't. In the game against Genoa he didn't play badly. Let's not forget that in 2 of those 3 games, our golden boy Romagnoli didn't do much better (penalty against Fiorentina, red card against Genoa) .. and the third game that Romagnoli (you mean Ely?) played was against Napoli who was a bulldozer team and he was paired with Zapata which was the first time they played together in an official game (and afaik even in friendlies since in those he was paired mostly with Alex)
If you want to blame him, blame him but stop being so fucking biased ...
I don't know how good he is, I trust Miha's judgement on this one over all RnB opinions.
Ender incorrect because Napoli's game came after Genoa's (where Romagnoli got sent off). Alessio was therefore suspended versus Napoli and we played with Zapata-Ely where Ely made several mistakes including an own goal. I think you meant to say Romagnoli instead of Ely.
None of the solid combination of Gigio-Romangoli-Alex played versus Napoli.
And Romagnoli-Zapata played together even before the Milan-Napoli game, it was Miha's preferred CB combination at season's start. But if you meant Ely-Zapata then yea it was the first time they played together but Ely hasn't played one minute in Serie A prior to this season. 2 games he started - Fiorentina + Napoli he was unbelievably bad and the loss was mostly his fault as the goals conceded were directly his fault. Fiorentina he gave them a freekick which they scored in due to his slow reaction and got an early red card that affected the game, and Napoli's performance was disastrous even if Zap wasn't the best partner.
In all scenarios, Ely needs to be loaned out to a Serie A team to play. No exception. If he's good enough and proves himself he'll come back (like Romagnoli and Rugani did with Samp and Empoli), if not we can't just wait for him to start performing at Milan. This should apply to De Santis and Vergara (and has applied to Suso, Niang in the past) too. Giving young defenders their Serie A debut and relying on them is very risky and unwise, especially for a team who wants results today instead of tomorrow.