System vindication
A lot of Everton fans have been calling for a three-man midfield for a while, and perhaps they will feel somewhat vindicated by what they saw on Tuesday evening.
On multiple occasions over the course of the campaign so far Frank Lampard's side have found themselves outrun and outnumbered in the centre of the park. The hard work of the likes of Alex Iwobi can only go so far to plug the gaps, of course.