It has been widely charactorized that when Scott Walker sent the "no more campaign work at work" email to Tim Russell, that it was directing Rusell in his oversight capacity as Deputy of Cheif of Staff to reign in the illegal activity, however, Russell's official job in the county executive's office was Director of Housing, not Deputy Chief of Staff. Russell had left the position of Deputy Cheif of Staff on March 15, 2010 and the "no more campaign work at work" email came two months later on May 14, 2010.

In other words, at the time Walker gave the order to Russell, he had no official oversight capacity over the County Executive Office staff indicated in Walker's email-- his only role at the time was as the defacto head of illegal campaign operations in the County Executive's Office.

Or, to look at it another way, if Walker truly had no idea what was going on and simply wanted to send out a directive ensuring no more illegal campaign activity why wouldn't he send the email to those officially in charge of oversight of his office: Cheif of Staff Tom Nordelli or Deputy Cheif of Staff Kelly Rindfleish?

Clearly, he wrote to Tim Russell because he knew Tim Russell was in charge of the illegal campaign-at-work set-up. As the complaint clearly states, we know this email to Russell had great impact, because after Russell got it, illegal campaign-at-work activity took a sudden downturn. Why would campaign-at-work activity of people that Russell had no official oversight of take this kind of downturn?
The only logical explanation is that Russell was in charge of the campaign-at-work operation and, more importantly, Walker knew that Russell was in charge of the illegal activity.