He said a certain amount of energy was imperative in leading a team so there was a need for change although CD didn't have many options on who would take over as captain.
"Some people reckon Will Young would have been a good captain but he needed to cement his position as a batsman and that wasn't the case at the start of the season."
Another source said the tension between Van Wyk and Noema-Barnett was accentuated when the pair batted together in the Wellington T20 round.
"There's still some ill feelings but the other mostly younger players wouldn't have noticed it," he said, adding there was nothing to suggest the pair had openly shown signs of antagonism towards each other.
What "clouded issues", he said, was Noema-Barnett "going elsewhere as a contracted player" (English county cricket).
Heinrich is the convener of selectors with CD director of cricket Craig Ross and Gary Cunningham the other members on the selection panel.
"He's [Noema-Barnett] getting nothing from CD apart from match payments because he's now an overseas player but CD should have paid him some sort of retainer, even if it was small amount as a token that he is valued."
Another source said unlike Stags teams under the previous regime, Van Wyk didn't have much say in the team.
"Former captains in CD didn't have an official role but their opinions were valued."
He said they didn't have a director of cricket before and it perplexed many as to what exactly Ross' role was in the CD structure.
"The only thing Craig is doing is meddling in other people's roles," the source said.
CD coaching director Scott Briasco was reduced to propping nets for Stags' practice and carrying out changing room errands, he said.
"He's [Ross] known as Captain Handshake to the boys because he comes down, shakes their hands and goes."
One source said the CD structure was fine but the problem, which surfaced in the era of former CEO Hugh Henderson, was the lack of middle-of-the-run players.
It also raised questions on the sudden departure of Henderson.
When players such as Peter Ingram and Michael Mason retired the exodus of Brad Patton, Tim Weston and Brendon Diamanti was crippling.
Ross said his role was a high-performance one and he was not "holding all that power".
"I'm a selector who just offers an opinion," he said.
"When players are dropped there's a high amount of emotion so I expect players to have that.
"They'll say things and look for various angles," Ross said, adding people's perception of how much power he wields is speculation and opinion.
"That's not how I operate."
He said it was a huge call for the CD selection panel to make on How and Noema-Barnett and the social media fuelled that emotion.
"It happens all the time. Maybe 20 years ago the players would have discussed it with each other but nowadays it's in the public domain."
CD have talent but there's a gulf in the 24-30 age group and that would take time, as Heinrich alluded to, to address.
Ross said his role was to bridge the void between 19-plus years to Stags selection which is why he had set up the Provincial A programme with various coaches, such as Andrew Cavill, of Marlborough, and Mason, of Manawatu, implementing it on a daily basis.
"I'm not the coach, I drive the programme," he said, emphasising he is the convener of selectors for the Provincial A team with Cunningham also on the panel.
Ross said the public expectation was to win every year but it wasn't realistic.
He echoed the sentiments of Malan that How and Noema-Barnett were experienced campaigners who had a pivotal role to play in the four-day Plunket Shield campaign, which resumes next Thursday against Canterbury Kings in Christchurch.
