EVERY manager wants to make an impression on a club and leave a legacy but it is doesn’t always turn out to be a positive one. This summer, Rangers will deal with Mark Warburton’s.

It will be costly, it will be difficult and the work may not be able to be completed in one go. It is a task that has to be undertaken, though.

Pedro Caixinha would have been aware of what he was walking into when he replaced Warburton at Ibrox but the project he has been presented with is a significant one.

Events of the last week, as Rangers succumbed to Celtic twice with two timid, mediocre performances, will have hardened many views and perhaps changed a couple in the stands and in the boardroom.

This squad is not fit for purpose and nobody in Light Blue can underestimate the rebuilding job that needs done now. It will start in the summer but will be easier said than done.

The first issue that Caixinha and the Gers hierarchy have to address is finding players that will improve both the squad and the starting line-up before Rangers return to Europa League action in June and then embark on another Premiership campaign.

For starters, Caixinha could be looking at bringing in two central defenders, a right-back, three central midfielders, two wide players and two strikers. Even that is on the conservative side.

The Portuguese has already completed his first deal looking ahead to next season and it was the obvious one that had to be done as Kenny Miller committed his future to Rangers for another twelve months.

Miller is the one player in the squad that has won major medals with Rangers and knows what it takes to survive, and thrive, in the Old Firm bubble.

He gets it at Ibrox, he understands it and he can rise to the challenge. As the last week has shown, too many of his team-mates don’t and can’t.

There are not enough winners in the Ibrox squad, not enough big game players and attitude will be as important as ability when Caixinha is scouring the market this summer. He needs good players, but players who can be good at Rangers.

A shoddy defensive line has to be bolstered as a matter of urgency, while Rangers are desperately lacking both a physical presence and a creative spark in midfield. Up front, a regular source of goals must be found.

All of this, of course, will take money and there is pressure now on Dave King and his fellow investors to deliver. If Rangers don’t spend wisely, then six will easily become seven for Celtic and it is as big a close season for the board as it is the manager.

The budget will have to increase once again this term but given the return for the outlay thus far, the sums needed are likely to be higher than initially anticipated at this stage of the process.

The Ibrox board backed Warburton in the transfer market twelve months ago but should now spend the coming weeks looking to undo most of that work.

Some of it, like the disastrous deal for Joey Barton, has already been rectified, but that came at a cost and moving players on will be easier said than done.

Philippe Senderos will surely depart, while Clint Hill’s future is uncertain and Emerson Hyndman and Jon Toral will return to Bournemouth and Arsenal respectively.

But with so many players under long-term contracts, Caixinha may have little room for manoeuvre.

There are few members of the squad that fans would be disappointed to see leave and some will only settle for a complete clear-out at the end of the campaign but there are unlikely to be a queue of suitors lining up to take players that have failed to perform in the Premiership.

If Caixinha does want a clean slate, then Rangers shouldn’t be hard to deal with and a significant turnaround in numbers is surely required this summer.

Cleaning up the mess that Warburton left behind will take time, effort and money. Rangers can’t afford for Caixinha to make the same mistakes this time around.