The Catalans are eager to add to their ranks this summer and have been linked with players such as Arsenal's Cesc Fabregas, Villarreal's Giuseppe Rossi and Udinese attacker Alexis Sanchez.
Cruyff believes signing the Gunners star, 24, would mean midfield stars Sergio Busquets, Andres Iniesta and Xavi can be kept fresher during the season.
Johan Cruyff said; "If Cesc signs there will be four players for three places, which means all of them can share out a lot of games.
"There comes a stage in the season when everything is at stake but the team is out of gas.
"As good as the Barca players are - and they are good - there comes a time where they've played too many games.
"You need players not only to strengthen competition but also to move things around without upsetting the team's rhythm."
