For Robertson a young boss with fresh ideas is better than one plucked from the managerial merry-go-round.
"I'm not against us appointing someone who is just starting out in management," said Robertson to the Express & Star.
"The search has not been a straightforward one. There have been a few issues.
"There have been problems behind the scenes and I'm worried we won't attract a manager with experience unless they have struggled in the past.
"For me we are at a point where we need to start thinking long-term. We need a clear plan.
"So I would be looking at a good professional who knows the game and has strong connections with clubs in the Premier League.
"I don't think a big manager will come so I think we have to look for someone who has the potential to be a big manager."
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