**Gordon D’Arcy believes Leo Cullen’s honesty is what has transformed Leinster into the Guinness PRO14 team to beat.** The former Ireland centre racked up over 250 games for the men from Dublin throughout a glittering rugby career, also donning the Ireland jersey on 82 occasions between 1999 and 2015. Old habits die hard and D’Arcy has not stopped monitoring developments at the RDS Arena, with Cullen’s men reigning supreme in the previous two editions of the Championship. And as Leinster sit imperiously at the summit of Conference A with 13 wins from 13, D’Arcy reckons it’s Cullen’s ability to say what he thinks that has propelled them into such a formidable force. “Leo is really honest with players,” the 40-year-old said.