Often we're asked to consult/advise on technology solutions built within the Firm but not at IT. This isn't rare because the Firm encourages thousand flowers to bloom and also IT cannot meet all software demands in the Firm.
These situations are challenging as the overall cost of building and supporting a solution isn't considered in the effort to build a cheap and effective solution. The existing IT ecosystem does matter. If IT doesn't support a certain product/platform, then using that product/platform has downstream support implications (cost $$$) that are often ignored when pitching a product/platform for a cheap and effective solution.
We need to consider total costs while making these technology decisions, for IT needs to create transparency on support/maintenance costs.
Existing IT ecosystem does matter!