As for replacement candidates? Pollard has been in 2 campaigns already in the last year. Houck loves the position he's in with the State Senate right now.
The problem is, even if you recruit a great candidate...they're still heavy underdogs in this horribly gerrymandered "district." Houck would do in great in the Fredericksburg region, and get crushed in the Northern Neck and the Williamsburg area. Pollard and Wittman are both from the Northern Neck, so Albert's strength there would be canceled out.