Lo Monaco says they wanted to sell more of their top players.
He said: "I am convinced I made a mistake, because I had the chance to sell players worth a total of 50m. A club as small as ours cannot afford to keep players and must renew constantly.
"We had done bell and wanted to see this squad together for another year, so I lost sight of the objectives of a club like ours. What's worth 50m in today's market could be 25m next season."