They can do anything
I think the key is to WORK every day. It doesn't have to be a drudge...just do the commands and make sure they do them. Some babies respond to food...some to toys.
Oscar and I work in the house...just a few minutes with stays [wait], downs and sits...we work for a few when we go for a walk.
Don't ever get discouraged, this is a VERY intelligent breed. Also remember that Oscar is four.
By the way - they are working dogs - but if Oscar were filling out any papers and the blank for occupation came up he would probably insert...clown or entertainer or teacher's pet.....get the pic