Henry rejected the chance to take charge of Bordeaux over the weekend.
Dugarry told RMC: "It's obviously a disappointment. To miss two old feasible players that were Zinedine Zidane and Thierry Henry, I find it a shame. Even more here, with the new shareholder.
"It was an opportunity to show something strong to the players, to the fans. Once again, this club is ridiculed by inaction, the incompetence of some of its leaders. I denounce for years how it works in this club. We see the result and I always take it full in the face.
"You have to cry to the wolf first! We had to worry for a long time because what is happening today is the result of a bad job for too long!"