Carl Allen, a trustee at the National Black Workers Group said many black people on boards were "over achievers" and some may not share the same perspectives as other black people.
Furthermore (and Dacre would have been proud of this line), "the ABC has an endless list of progressive journalists and hosts sharing their perspectives and an absence of hosts or programmers who are mainstream or, heaven forbid, conservative".
Two intriguing perspectives on NHS white paper developments: Andy Cowper's When the going gets weird, the weird turn pro post and HSJ Editor Alistair McLellan's leader on Stephen Dorrell's "electrifying" - and pretty subversive intervention on the pace of reform.
Often described as "para-documentaries", his films present revealing multiple perspectives conjured from archival finds and specially created evocative footage.
In a fully-functioning national political system, political parties would be able to voice these different perspectives – and hopefully act as a referee and find common ground between them.
Sweeney outlines a number of steps that companies can take to keep the impact of bias in check, including "reviewing people data such as recruitment and appraisals to identify if bias is playing a part in the decision making" and "encouraging employees to talk to others when making decisions to gain different perspectives and insights".
Do all the conflicting perspectives come at a cost?
They offer a diversity of subject matter expertise, capabilities and perspectives.
On the subject of different perspectives, a most striking one was offered by the excellent commentator on the US, Andrew Sullivan.
A: No. Moderators are not employed on the basis of any affiliation, and are required to enforce the community standards neutrally and consistently across the site, whatever their personal perspectives.
A BBC spokesperson said: "Book at Bedtime offers the best of modern and classic literature and, in doing so, presents a wide range of perspectives from around the world.
