You're overlooking the good impression that Roberto made in his first season.
He introduced an original and exciting style of playing, using Baines and, in particular, Coleman, to take the ball forward. He signed Barry and McCarthy to provide defensive cover for the fullbacks - and Lukaku to score the goals.
2012/13 6
Everton 38 16 15 07 55 40 +15 63
2013/14 5
Everton 38 21 09 08 61 39 +22 72
The second season, opponents countered the system by pressing much higher. This season, Barry has successfully acted as the point of distribution, while Deulofeu and Lennon have provided the crosses for Lukaku. Despite this reduced reliance on the fullbacks in attack, the team has leaked goals.