The department leadership never approved the research. Why does no one seem to understand that universities don't work like corporations? You never have to get your research ideas approved up the chain of command. You just start working on them (after running them by an IRB if you think that's necessary).
The IRB is not "leadership", and the IRB process is usually not very adversial, i.e. primarily based on how the researchers represent their own work. (which is a flaw, but one thats common to how this works, not necessarily some special failure of UMN - which is why more investigation is needed)
