It is true that currently Chelsea is difficult to predict because their performance is very unstable, especially when playing away from home. However, when Chelsea is the host, Chelsea wins and draws more, which I don't think Chelsea will let Fulham win at Stamford Bridge.
And head to head both Chelsea teams are superior to Fulham and Chelsea won three wins, one draw and also one defeat against Fulham. And I think Pochettino will plan and give his best in front of his supporters and will field his best squad to win this match, even though every Chelsea match is always in doubt, but for this match I think they can win it.
Chelsea have got one of the most unstable and inconsistent performance in recent times, trying to predict the possible out come of Chelsea game could end in several attempts to a wrong pick because they will loose when you expect they win and draw in some other cases, they have won only but a few times
Chelsea will be really determined to winning fullham but then I'm their usual manner in recent times we can't be sure if they really can because even fullham isn't a team to be considered with weakness as they are within the average range and can be very resistive at their defense and Chelsea has a poor chemistry in their front line as they play in almost irregular form at the front line so they may really find it difficult penetrating the defense line of fullham but I'm sure they are the favourite for this game.