This is largely the same rational that was used at the company I work at to transition to Slack. From an engineer and developer point of view, I rarely, if eve

This is largely the same rational that was used at the company I work at to transition to Slack. From an engineer and developer point of view, I rarely, if ever, directly communicate with non-engineers over instant messaging. For people who deal with different groups of people in the company, shouldn't it be up to them to handle communicating with different groups using different methods rather than compelling everyone to use the same communication platform for instant messaging?