Dave Carolan was appointed as Norwich City's first team sports scientist in 1998 when Bruce Rioch was manager. He served under five manager until 6th June 2008 when he left the club as part of Glenn Roeder's backroom re-shuffle.

Carolan said: “I thoroughly enjoyed my ten seasons at Norwich City Football Club in which we experienced some great highs and some disappointing lows. Reaching the play-off final and promotion to the Premiership will forever be memories linking me to fantastic times at Norwich. It has been my pleasure to work with fantastic players, and excellent staff - and to serve an outstanding club which is unique in the world of football. With my expertise and experience I can look forward to working in other sports at elite level and will take my knowledge to work with and help other professional sportsmen and women and highly-motivated individuals looking to improve their fitness. I look forward to success returning on the pitch at next season at Carrow Road, where I will be returning with my children to support the club in the place we call home.”

Manager Glenn Roeder said: “Dave has worked very hard over the years to keep the club abreast of the expanding area of sports science and the opportunities and changes it brings to the modern game. I'd like to wish him well in whatever challenge he moves on to next and to thank him for his efforts for Norwich City.”

Carolan then took up a part-time role in June 2008 with the English Institute of Sport, preparing Great Britain's shooting team for the Olympic Games.On 4th July, it was announced that he had been signed by Colchester United as fitness coach / sports scientist to replace Donough Holohan who has moved to West Ham. Carolan said “I spoke to Geraint Williams, the Colchester manager, at the end of last week and this is the perfect opportunity for me. They understand that I have a commitment with the EIS and the two will dovetail together. There were no plans for me to go to Beijing but I will continue to provide support and continuity to the shooting team.”

He added “Norwich was a good family club with a good community feel and Jamie Cureton described Colchester in exactly the same way, which made me feel this was the right move for me. I have spoken to a number of people and as well as Jamie, Steve Foley spoke in high regard about what Colchester has to offer. The manager and chief executive are both very positive. I've toured the new ground, which looks fantastic, and they are building a new training ground. My wife is from Colchester and her parents live five minutes' walk from the new ground, so this has really fallen in my lap."

Dave also joined Lowestoft's coaching team in August 2008 to take responsbility for the Ridgeons League sie's first team fitness

Carolan's iDrills soccer coaching app was adopted by the Football Association in June 2013. The all new FA app continues to give coaches the power to create and edit practices and sessions and to export and share these with their players, assistants and parents. Building on the success of i-Drills’ first app the powerful platform has also been extended to enable coaches to share practices privately through the CoachMates network, as well giving them access to a public global network of practices through the subscription based TransferMarket. In addition, FA Licensed Coaches will benefit from free, exclusive practices and sessions – delivered direct to their tablets as they are published by the team at St. George’s Park.