Castle said new captain Angus Schaw led the team extremely well and got them into a strong lead, finishing on a personal tally of 127.
"Under Schaw, the Hawke's Bay Senior Men are playing a great style of cricket that wins games," Castle said.
The coach said during the match North Otago came out to bat and were playing shots.
"They were 51 for none off nine overs at the tea break, but we were able to stay calm and focused on our jobs," he said.
"Then we had an inspired spell by Todd Watson, taking four top-order wickets in quick succession, clinically finished off by Liam Dudding who bowled with pace and precision."
With the Ranfurly Shield and the Hawke Cup both now in Hawke's Bay's possession, Castle said the region should relish it as both trophies don't come around often.
"I think would could safely say that what we are doing with sport in Hawke's Bay is working well and we are bringing through lots of local talent," he added.
North Otago congratulated the Hawke's Bay team and wished them all the best for their first title defence, due to take place in a fortnight.
The South Island cricketing district also delivered some sad news over the weekend, announcing the passing of former North Otago president Bill Rushton.