I’ve heard similar sentiments all week here and there, here, from an e-mailer:

Your endorsement of Shadegg is welcome news. We need conservative leadership, not just a good voting record.
This is why I recommend that you consider endorsing Todd Tiahrt in the Whip race. Your list of reasons for supporting Shadegg mirror the reasons why Tiahrt is the right person for Whip.
Eric Cantor is a good representative, but he is part of the existing leadership team and was hand picked by Blunt. We also need someone untainted by Abramoff. Cantor, like Blunt, has ties to Abramoff (Cantor has returned Abramoff money).
This may be a once-in-a-lifetime chance to change the leadership dynamic for the better. Shadegg’s ascension would be one step on the right track. Shadegg ought to have a clean break from the prior leadership in supporting leadership positions. Cantor cannot do this, since he is beholden to Blunt. Your endorsement of Tiahrt can further help Shadegg by giving him a complete change down the line.