Ramos, a former Sevilla player, is in talks with the club's major shareholders about a buyout.
However, Monchi warns the former Real Madrid captain will not make a success as president unless he has good people around him.
He told Marca: "He has experience and, despite everything that happened, I know he's a Sevilla fan, which is why he came back last year. And hey, if he has shareholder backing—because that requires buying shares—and he wants to dedicate himself to it…
"In these matters, and I'm not talking about Sergio Ramos, no president can achieve anything single-handedly, neither sinking nor succeeding. Projects are more about collective effort than individual effort. I have no idea about Sergio 's project, but he hasn't been here for just two days.
Monchi continued, adding that he imagines Sergio "will also have experienced people around him to help him manage it.
"As president of a very small football club, I rely on people from marketing, security, and press; what's important isn't just you, it's the people you surround yourself with. In other words, projects have many contributors, for better or for worse," he argued.
Monchi imagines that "if Sergio has gotten himself into this mess, he's done so knowingly."
As for the reasons the man from Camas might have for wanting to own Sevilla, Monchi's quite clear: "He's won everything there is to win at Real Madrid , but he didn't have the opportunity at Sevilla because he left just before, so maybe he has that extra motivation.
"Besides, he's a guy with a big ego, in a positive way, and a lot of luck. He might be thinking: 'Hey, I think I can make Sevilla champions.'"