Put wine and bay leaves in bottom of slow cooker. With a large knife, make six to eight deep slits in the meat down to a depth of about 1/2" from the bottom (do not cut all the way through). Combine the finely chopped veggies and all seasonings in a small bowl. Fill the slits with this seasoning blend; if there is any left over, it can be spread over top. Place roast in slow cooker, and put sliced onions & matchstick carrots on top. Scrub potatoes, then make lengthwise slices (like oversized chunky homestyle fries) and put these on or around the roast.