Doyle’s Left Flank Unhappy?

There's been a lot written (I've written it myself) about Governor Doyle's attempts to out-flank potential 2006 opponents on conservative issues, like taxes and gummint regulation.

The Realtor's Association's Joe Murray has another take on the subject: while moving right may insulate Doyle from a conservative challenger, moving to the right could cost him a liberal challenger.

He begins:

Governor Jim Doyle has a political problem. Not from Republicans who control the legislature and battle with him on a host of social and tax issues. That’s to be expected. Doyle’s problem seems to be with the more progressive wing of the Democratic Party. Many environmentalists, state employees and liberal party activists are seething. For a variety of policy reasons, the governor seems to have alienated this important segment of his political base, and that could give him problems in his 2006 bid for re-election.

And concludes:

The governor’s potential problem is best illustrated by a quote from a disgruntled and anonymous state employee. “I’d vote for Thompson if he returns in 2006. If Gard runs against Doyle, I still wouldn’t vote for Doyle. I’d vote Green (party).” Too many such voices from his base could spell trouble for the governor.

The question is: has Doyle bought himself enough room on the Right (if any) to offset his losses on the Left?