The runaway Ligue 1 leaders, who won the league and League Cup double last season, have also targeted the French Cup in this campaign and dream of becoming the first side to claim all three trophies in the same year.
"Whatever the conditions, we approach every game to win it," Blanc, whose side have reached the Cup last 16 and the League Cup quarter-finals, told reporters.
"We have a squad that enables us to play for all three competitions and we are making progress," the 1998 World Cup-winning defender added.
Defender Matthieu Chalme is equally confident. "We all believe the treble is possible," he told French sports daily L'Equipe.
"We have a very healthy squad. We're not there to create trouble but to win titles together."
"I understand your frustration, I accept criticism and I'm ready to hear everything," Sebastien Bazin, managing director in Europe for Colony Capital, an investment firm, wrote to the PSG fans in an open letter released on the club website.
"The club's recent results are not up to your expectations or mine," he added. "Like you, I suffer from this and am far from happy with the current situation."
