No mate, we have been 4th to 8th for most of a decade.. we just finished 11th and don't look odds on to do much better this season, today we lost 4-3 to stoke and have conceded 18 in 10 games.. This is not normal for us, this is not an historical pattern, this is a new level of poor at the back, combined with a new level of quality up front as our CF is now the highest scorer in the league.
This is exactly what everyone that saw a team Martinez managed before Everton, told everyone that hadn't seen a team Martinez had managed before us would happen. We would attack well but defend abysmally..
The only thing doing this sort of crap forever is our manager. So yeah its his fault.