Funny you should mention that, Cody. That was something Sgt. Sternberg mentioned the day I chatted with him. He said the number of hours they each put into this case...chasing down leads, following up just about everything they or anyone could think of, and this went on for years! This is how they work all their cases.
When you see them on the witness stand you are getting a tiny fraction of what they've done--and that is just showing the evidence the state is entering. What no one sees is how much work it's taken to get them to the point where a case can be accepted by the DA's office and then taken to trial.
There was nothing shoddy about WCSO's part of this investigation. There are always things that could be done better (CCBI learning to seize vacuum cleaners, for instance), but perfection is elusive and when you have to work with other agencies, you deal with the realities of that.