Edu believes Arsenal's new-look first team will eventually recover from their shaky start to the season and challenge once more.
"There are some big changes," he told Arsenal.com. "They have sold two or three important players who are difficult to replace.
"For me, to build a good team you need time - like in our time. I remember for three or four years we were playing together and that is why we built a very good, strong team.
"They need the time and that is maybe why they are not doing so well yet."