Chris Sutton has suggested that Celtic need to make big changes this summer despite securing another domestic Treble.

Chris Sutton has told BT Sport that he believes that Celtic could need to make up to seven signings this summer, with the pundit urging Peter Lawwell to back Neil Lennon in the market after the interim boss was offered the job on a permanent basis.

The Hoops go into this summer having secured their third domestic Treble. Nevertheless, Lennon may feel that he has a little to prove with some of the Parkhead faithful a little underwhelmed with the club’s decision to keep the Northern Irishman in charge.

With Rangers showing signs that suggest that they could close the gap next season, it is going to be a crucial window for the Bhoys. And Sutton insisted that there needs to be big changes over the coming months.

“It needs a big overhaul,” he told BT Sport. “If Neil Lennon has been given the job, it’s so important that he has the backing of Peter Lawwell in the transfer market.

“They need to spend. It needs a big overhaul. It doesn’t need one or two. It needs wholesale changes, five, six, seven players in.”

While Celtic fans may point out that Rangers’ best run of the season came when the title was all but gone, and their most recent Old Firm victory came when the Hoops had greater priorities, it will not do them any harm to work on the basis that Steven Gerrard’s men could enjoy a perfect window.

Rangers have improved and made progress. And while Celtic should still be favourites to clinch a ninth title in a row next year, they should not allow themselves to get complacent in the work they do this summer.

With the Gers’ belief greater than ever since their promotion to the top flight, Celtic have a fantastic chance to send out a huge statement by shutting the door on their rivals and beginning a new era of dominance without the current one ending.

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