The former Wales international has revealed the satisfaction he has taken from his time at Warriors as the club has regained and retained its place in the Aviva Premiership.
And Davies admitted the Cardiff job was one of the only positions that could have taken him away from his Worcester experience.
"I'm excited about the opportunity at Cardiff," concluded Davies. "I have always retained ambition to be a Director of Rugby again and this role naturally excites me. It is hard to leave Worcester, though, as I have thoroughly enjoyed it here and the club's future is fantastic.
"I had the chance to come and coach in the Aviva Premiership with Richard (Hill) and I have always held the Warriors in huge regard since my days with Leeds.
"I left a good job at the WRU to come here and that shows what I felt about this role. I have only ever served two clubs in 25 years of playing; I stay with clubs so leaving Warriors is difficult.
"The chance to come and work with Richard (Hill) was something we had discussed over many years; we knew each other from our playing and coaching days.
"I also knew Cecil Duckworth and Warriors from our clashes in the National Division One from my time at Headingley. I had respect for this club and knew what could be achieved here. That was the added bonus about coming here, I believed in the Warriors.
"Clive Griffiths also talked about the passion and the support of the fans here. The biggest compliment is that the fans at Sixways remind me of my old Stradey Park days in the late 80s and early 90s, they always will with the noise they make. It is phenomenal."
Davies will now be away from Sixways, but he admits he will retain a close eye on developments and believes the huge potential at the club is close to being realised.
"As a club, Worcester has plans to be a powerhouse in European rugby. The Board has that ambition and everybody is pulling together, the belief is something everyone shares and you can't deny that.
"The potential is there to be a great, great club. Potential can be a hollow word, but having worked at Warriors I can see what is being done. Progress is being made, good structures are in place and the coaching team and support staff are working tirelessly."
Davies also paid tribute to all the players he has worked with during his time at Sixways adding: "I have been involved in rugby for 32 years, but at Worcester I have met some of the best men to work with.
"The likes of Adam Black, Craig Gillies, Chris Fortey, Pat Sanderson, Kai Horstmann are top people. Greg Rawlinson has to be one of the best players I have ever coached because he was very direct, he would give you everything and told you exactly what I felt, I liked that.
"The young players like Matt Kvesic, Ed Shervington, Jake Abbott and Matt Mullan have been great to work with, also the likes of Graham Kitchener. Not to mention the Tongan boys with Aleki Lutui and Tevita Taumoepeau, the banter with them can be priceless.
"I have also loved working with the Academy lads and have a huge amount of time for Andrew Stanley and what he has done.
"I had a group of forwards who worked hard, were respectful and wanted to improve as individuals. I hope we have brought a multi-skilled approach to the pack and a club that was renowned for its scrum and driving lineout has retained that integrity but also developed."
As for his relationship with Head Coach Richard Hill, Davies smiles that the two have formed an even solid friendship both on and off the training field.
"We have our moments, nobody always agrees, but we have worked well together," laughed Davies.
"I have a massive amount of respect for Hilly. I have enjoyed the role, he is very methodical and he works incredibly hard, the club is lucky to have someone like him driving it on.
"I've also enjoyed my time working with Phil Larder. He is a world class coach. All around me I have made friends and enjoyed my time with all the staff.
"Carts (Alun Carter), Picks (Stu Pickering) and all the medical and conditioning staff have been spot on. Guys like Tenchy (Tom Tench) working hard on all the analysis work. These are young and talented men who are Worcester men; they want the best for this club."
Before his departure, Davies has one more game with Northampton Saints this coming Saturday (kick-off 2pm) and acknowledges he would like to go out on a high with Warriors.
"People always remember their last game - so I hope it is a memorable one," he added.
"The Saints are chasing top four and we want to finish on a high, finish with momentum going into next season.
"Looking around the dressing room it will be the final game for boys like Kai Horstmann, Miles Benjamin, Bruce Douglas. There is a lot to play for and they will want to look around and know they played with intensity and desire until the end.
"On Saturday we need to show the levels we did against Saracens and Gloucester here at Sixways. Nobody more than me wants to go there and win and finish with a positive."