The Catalan side are going through a rough period as they find themselves four points behind league leaders Real Madrid and have won just five of their last 10 games.
The poor results of late have seen coach Gerardo Martino come under a great deal of pressure but Stoichkov insists the Argentine is not the only one to blame."It's very easy to lay the blame at his door," the Bulgarian told Marca. "He doesn’t hide from it. I don't think he's overwhelmed.
"These bad results can be fixed in the dressing room. That's where the team can get a lift.
"We need two or three players to reinforce this side and we shouldn't force the players from Barça B to go to other clubs to find glory."
The former Barcelona forward went on to discuss the Blaugrana's recruitment policy and said the club must trust their current staff to carry out the rebuilding process.
"I have a great deal of respect for [Andoni] Zubizarreta, and I'm not going to criticise him for a second. If he's left to get on with it he knows what he's doing. He wants one guy, and they get him someone else. That didn't happen with Txiki Begiristain."
The 48-year-old was then asked if he thinks current Atletico Madrid boss Diego Simeone would a good coach for the Catalan side.
"Cholo would be too much for Barca," he replied.