Pedro Caixinha as the "worst I've ever come across". The 30-year-old was signed by Mark Warburton and was a key man in the side that raced to the Scottish Championship title back in 2015.
But Kiernan was quickly left on the outside looking when the bull-fighting matador swept in to Glasgow as Warburton's replacement in March 2017.
A deluge of stories have since emerged surrounding Caixinha's flop seven-month stay at Ibrox with former players miffed about his credentials and approach to life at Ibrox.
And now Kiernan - who now stars for Rangers affiliate club Orange County - admits he was also instantly dismayed by Caixinha in the immediate aftermath of his opening powerpoint presentation.
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