I agree with @Finney Is Back here. At our level, no player should need babysitting. Not unless they're being overloaded on that side.Indeed.
But Sissoko wasn't on the pitch any more to put out the fire caused by the brain-fart.
That was the point.
Lamela had only just come on and (IIRC) wasn't immediately moving into the same role as Sissoko.