O'Donnell said it was part of an concentrated effort by the club to develop a professional culture where young players had access to top line coaching.
"It's a credit to the club that they are able to provide access to this type of coaching, and it provides players with a real opportunity to reach their potential," he said.
Williams sent in a video with his application. He came with a strong cricket coaching CV, with an added bonus his ability to bowl sharply at 130km/h.
The 25-year-old was a Level 2 UK cricket coach and has a Bachelor of Science degree from Leeds Beckett University in Sports Coaching BSc, and had previously worked with the Cheshire Cricket Board as a contracted coach.
There he coached district and minor county teams and worked with regional schools and colleges.
As a player, he was known as a bowler and had played for the strong English cricket club Hyde CC since completing University. That Hyde side completed a double in winning its Premier League the last two seasons.