If you were in charge of the DCCC, what would you do differently?

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Eliminate the vendor blacklist rule for those supporting primary challengers and not try to coronate preferred candidates. In many cases the coronation of preferred candidates may actually deprive them the opportunity of fine-tuning their political campaigning skills, thereby leaving them more vulnerable against opponents in the general election.

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[...]
2. Candidate recruitment: There is a serious disconnect between how democratic elites imagine "regular people" and how these people actually are. It seems like in competitive races, Democrats believe that nominating candidates with a record of success either in the bureaucracy or business are preferable because they think that that's what the avg. Joe aspires toward, missing that three things working people hate in this country are: 1. liberal elites, 2. big govt', and 3. big biz.
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Could this statement be interpreted to mean that governors, mayors, county executives, town supervisors, and other executive-level public officeholders (whether current or former) are not good candidates to recruit for US House and/or Senate races?