Stop looking for who's to blame; instead start asking, "What's the system?" - Donella Meadows.
One of the many joyous things about Systems Thinking is that through its application, the cognitive biases that we all hold are automatically and intrinsically highlighted, questioned and queried.
For example, the cognitive biases that can drive the tendency to blame others when things go wrong (Fundamental Attribution Error, Self-serving Bias and Actor-Observer Bias) all evaporate when you look at the problem through the lens of the System rather than focusing on the individual.
In innovation things go wrong all the time. 80% (is it more?) of innovation fails.
And whilst it might be mildly cathartic - and indeed the path of least resistance - to point the finger of blame for an innovation fail at an individual, it doesn't get you anywhere useful for next time.
Much better - as Donella advocates - to seek discrepancies and solvable leverage points in the System as a whole (albeit recognising that structural biases do exist in all human-created systems).