Switching Sissoko and Gerrard in the middle of 2nd half was what caused Liverpool gained back possession and finally got that goal.
But, you can see a few times when Sissoko got the ball on the right side of the box but because he's not an attack minded player, he will always pass back to Alonso/Gerrard etc which stops the rhythm of attack.
If we had a real attack-minded right sided midfielder at that position, he would have go for goal and there's a high chance he might get it.
Sissoko is still raw lah, but I feel he's a fringe player for now, not a first team XI.