Post-Gazette Pirates insider Noah Hiles previews the team's three-game series against the Chicago Cubs that begins Tuesday night at PNC Park. Can Paul Skenes, Andrew Heaney and Carmen Mlodzinski slow down the red-hot Cubs lineup led by Kyle Tucker? Can Andrew McCutchen and Oneil Cruz stay hot to lead a Pirates lineup that's shown progress over the past week? And what other surprises might the Cubs have in store? Noah tackles those questions and more.