Totti believes it may be tough for his club to challenge for honours.
"I'm more experienced than I was then Zeman was first here, but you can't win games on your own," he said.
"The squad is quite good, but it needs completing. We need important signings to reach the levels of Juventus, Milan and Inter.
"Who? I don't want to name any names. You certainly need big players to win things, but we'll have to wait and see.
"A transitional year? I'm not sure the fans have the desire to wait another year "