The 6'3 point guard averaged 18 points, 5.4 rebounds, 5.3 assists per game during the 2013-14 season for the Atlantic Division champion Mill Rats. Herring was named NBL Canada Player of the Week in November 2013 and voted to participate in the 2014 NBL Canada All Star Weekend representing the Atlantic Division. 

Last season he took his talents to Europe to suit up for the Bristol Flyers of the British Basketball League.  In the BBL, Herring averaged 18 points, 3.9 rebounds, and 4.3 assists before an ACL tear prematurely ended his season after just 12 games.   He had surgery in England and returned the United States where he rehabbed and returned to competitive basketball in the spring. 

Herring went on an NBL Canada 'All Stars' team that toured China with Island Storm Head Coach Joe Salerno, and took part in million dollar 'The Basketball Tournament' for a team called Max's All Stars this summer. He also led his team to the finals of the Greater Hartford Pro Am summer league for the second year in a row.

"I watched Doug scored 52 points in the Hartford Pro Am against a team of UConn players and NBA players," said Mill Rats General Manager Ian McCarthy. "That convinced me he was back to his peak form and would be a great asset to reunite with Coach Spon."