He explained: "No. We've got a lot of work to do still on the squad and I don't think we're anywhere near where we want to be.
"It probably will take a little bit more than three windows to get there, for sure.
"Just in terms of the robustness, adaptability and compatibility of the squad, I think there's still a fair bit of change we need to do.
"I certainly don't think we're one or two players away from getting to where I want us to be, nowhere near it. Some of that will be natural evolution.
"Some of it hopefully means we continue to get the improvement we've had this year from some of our players. If that happens over the next 12 months, then yeah we'll be in a great position.
"But you've got to remember, a lot of our group are in their first year of the Premier League. A good chunk of them have been ever-presents, we need them to keep improving at the rate they are.
"We've still got a lot of work to do with the squad. I think we're a long way away from having one or two players away from getting where we want to.
"(The number of summer signings) depends on availability of players, suitability of players there could be more activity, there could be less activity.
"But what we want to do is make sure we bring in the right ones. Maybe we do only bring in one or two, I don't know. But that will only be because we think there are only one or two that suitable for what we're looking for. But that doesn't mean we'll be where I want us to be."