The pair snubbed a team huddle during last week's draw at Lazio, sparking claims of Fonseca's authority being undermined.
Asked if he expected a tougher approach by the club, Capello said on Radio Deejay: "No, I wouldn’t have thought so. The club had to intervene by saying that the coach is not to be touched, but with the players, the coach has to intervene: he has the most important role, he’s the one who has to recreate the harmony.
“It’s difficult (for Fonseca). But I hope so, he must be given time to make his ideas understood.
"He has shown strength and personality by leaving them out, and now he must do it by making them understand that playing without help in the defensive phase will get you nowhere.”
Udinese goalkeeper Okoye: Incredible to have legend Alexis with us
Alexis re-signed for Udinese last month after coming off contract at Inter Milan.
Okoye told the The Italian Football Podcast: "Incredible, I remember when he first came into the dressing room. I was sitting in my chair, right at the beginning, I looked up, I immediately stood up and shook his hand as if to say: it's Alexis Sanchez.
"He's a legend of football, not just a legend of Udinese, but of the game in general. It's a privilege and I'm proud to be able to work with a legend like him."
On young teammate Lorenzo Lucca, he added: "Absolutely, he has the potential (to become Italy's number 9). For me, he is already a top-level striker. Like me, he is young and has to work on many things. Sooner or later, 100%, he will get there. He has all the qualities.
"He has the height, but he also has the skills of a striker who is not so tall, if you know what I mean. He is a very special player, I am happy to play with him. He will definitely be there (with Italy)".
