Roberto Martinez could be described as an incredibly inconsistent manager for Everton Football Club. His reign started well, guiding the club to sixth and fifth-place finishes during his first two years.
The fans could see improvement; they had a solid squad and things were looking up. But he came unstuck. His final two seasons saw 11th-place finishes and frustration instilled into each and every Toffees fan.
Fast forward to today, and that same frustration is coming back again. Ronald Koeman looked to be getting Everton back to being a team you don't want to face. That gritty team that, no matter how well you're playing, it will be a tough test at Goodison.