The former Everton boss was heavily criticised for the lack of headway made in the summer transfer window, with the club failing in their public pursuit of Barcelona midfielder Cesc Fabregas, as well as missing out on the likes of Leighton Baines and Fabio Coentrao.
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"I am thinking how we are going to have a side that is going to be competing in the Champions League and right at the top end of the Premier League for four or five years.
"It has to be a continual building process here. We will continue to look to do that. In any one window you couldn't change it all around anyway. It takes maybe two, three or four windows to do that.
"To talk about January and make it sound as if that would be the place where everything is cured and any problems would be resolved would be wrong.
"It is not me saying we are not going to buy anyone in January,” he continued. “We are going to try to if the opportunity is there, but they have to fit the right criteria. If not, we will have to wait until the summer and see if we can get them then."