We have a look at the most likely candidates according to the bookmakers.
The Aberdeen manager is the stand-out domestic candidate after leading the Dons to three consecutive runners-up finishes, the League Cup in 2014 and two cup finals last season. But he signed a three-year contract in the summer after rejecting Sunderland’s advances and Rangers would have difficulty finding the cash and persuasive powers to prise him from Pittodrie.
The former Rangers manager was overlooked in favour of Caixinha in March. His previous five-year stint in charge at Ibrox spanned 2001 to 2006. He twice secured dramatic last-day title wins as well as a pair of Scottish Cup triumphs and a hat-trick of League Cup successes. He admitted reservations about certain aspects of his talks with Rangers earlier this year.
A former Rangers player, Davies would relish the task of rebuilding the side. The former Motherwell boss took Derby to the Premier League and both Preston and Nottingham Forest to the Championship play-offs but has now been out of work for three years because of what he alleges is a smear campaign against him. Was interviewed for the Hearts job recently.
The Rangers U20 coach proved a popular caretaker in February and March and achieved what both Mark Warburton and Caixinha failed to do in avoiding defeat against Brendan Rodgers’ Celtic. Although he lost his first two league games in charge, he then guided Rangers to victories over St Johnstone and Hamilton. Will take charge against Hearts tomorrow.
FRANK DE BOER
The ex-Rangers defender will have been chastened by his four-match spell at Crystal Palace and will want more stability than a club with the financial question marks that remain over Ibrox. The Dutchman is a much more known quantity than Caixinha, capturing him would send a signal, but unlikely he would go into a squad in need of overhaul at this stage of the season.
The Rangers striker was installed as the early favourite before Pedro Caixinha even lost the job, but there seems little chance he’ll immediately walk into the role. Rangers have to get this appointment right, so it would be a huge gamble to give it to someone with no managerial experience.
The Rangers board might decide a manager with a proven track record in Scotland is what they need after an eye-catching but risky foreign appointment. Wright has led Saints to a Scottish Cup triumph, top-six finishes in each of his four full seasons in charge plus several European adventures after cutting his managerial teeth in the Irish League.
Odds provided by McBookie.com