The core problem is that organizations have been setting requirements based on vendors and products. The organization's requirements should be set on standards such as ISO and ODF.
Yes, the organization will internally want to limit the number of configurations to be supported. However, basing requirements on standards gives the organization many more choices. It also reduces vendor lock-in and is a strategic advantage in negotiating with vendors.
The BYOD syndrome can be more easily managed by setting forth requirements in terms of standards. If the employee wants to use their ...whatever... device to prepare a document, then that's fine as long as the result adheres to the standard. If it takes the employee longer to figure out how to make it work, then they are less productive. Their performance review should be based on the work done, not on what device they used to do it.
"The executive" problem of new, shiny gadget lust is a difficult one. The same principles apply. If the executive gets less done, they will get an appropriate review and salary correction.
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