as much as it pains me to say this, livan is a better pitcher on a worse team. pittsburgh isn't going to be confused with the big red machine anytime soon, however, suffice to say it will probably be better off than mtl offense wise.
livan will prolly win 10-15, and with him i wouldnt exactly be surprised if he imploded back to 4.5eradom.
oliver might be able to do something good, however i wouldn't bet on it being this year. as i said in another thread, it wouldnt be the biggest surprise ever if he ended up having a really good season, as he's still 23 at the most, however, its not something to be banked on.