The tight nature of this season's Premier League ensures there is little to choose between many clubs within the division.
The centre-back told evertonfc.com: "The table is really tight this season, more so than normal, and a few wins in a row can catapult you right up that league.
“We're still thinking we can get into the top half and the top six isn't out of the picture at the minute.
“It is really tight and anything can happen. But all we can do is focus on one game at a time and they obviously come thick and fast over Christmas but the sooner we start winning consistently, the better.
“Big Dunc came in and sort of galvanised us. He got us up for the game [against Chelsea] and we knew the fans would get right behind us, especially with Dunc being in charge. We were after a reaction and that's what we got.
“What a day it was for him and all the fans – it was something they deserved."