I do not have any information. This is simply what I believe happened based on deductive reasoning.
Dolson's first order of business after firing Archie was going after Brad Stevens. Is there a chance conversations with Stevens' wife (his agent) were underway prior to Archie being fired? Sure, but it doesn't matter at this point. At some point, Stevens ultimately rejected IU's offer in favor of remaining in the NBA.
From there, Dolson likely kicked the tires on Chris Beard, who also rebuffed Dolson. My belief is it was at this point Dolson entered negotiations with Woodson to become the next head coach.