Labrune, though, insisted they would not be selling some of their best young assets including Florian Thauvin, Benjamin Mendy, Mario Lemina or Brice Samba.
"For each of them I received offers superior to the fee we paid for them, but we rely on them for next season," he said.
"They won’t be the same anymore as they will master a bit more of the l’OM environment. Thauvin? His value on the market is very high but it’s out of the question to sell him."
He did admit he was less sure over the long-term futures of Andre-Pierre Gignac and Souleymane Diawara.
"The current problem is not about who will leave and who will stay, but to have results that match our ambition, because the composition of our group will also depend on our sporting situation," he said.
Marseille are currently in sixth place in Ligue 1, some nine points off third place and the final UEFA Champions League spot.