For the elder people with experience and expertise than I, he had neglected to pay attention to those things, and they have expertise, it does not allow time for the unexpected solutions.
For those people who are experienced and skilled than I had neglected to pay attention to those things, and because the expert did not allow time for unexpected problems.
For senior people with experience and expertise over me he had neglected to pay attention to those things, and because the expertise didn't spare time for solve the problem that the unexpected.