Flexibility has been of interest from gitgo. I have kept dogs with livestock for nearly 40 years and mulitpurpose was not planned but when realized resulted in a dog that for me was more fun to be around. Dog could guard premises at night and help hunt rabbits during day. Problem is mental development slower as not as instinct driven. I am getting a bit of experience with "Great Pyrenees" at work. We have eight. Many are a mix of LGD breeds. Best seem to have a little German Sheperd in their breeding. They do fine with sheep and goats confined in feedlots but do not follow females when foraging in larger pastures during day. I am in process of pushing free range chicken flocks to range further than "feedlot" situation and dog needs to periodically, especially during day, make his present known to Wiley Coyote, Red the Fox, and Rusty the Red-tailed Hawk. The predator drive that promotes my dogs making rounds operates 75% of time in my absence so dog is not always in biddable mode.