The Hoops crashed out of the Scottish Cup to Aberdeen last weekend. They face the Saints aiming to extend their huge lead at the top of the table, but the boss is feeling the fans' frustrations.
He said: "The supporters have been brilliant this season. It is up to us to get them going. Sometimes it takes that at home. We have got to go out there and take the game to St Johnstone and get the fans on side as quickly as possible."