Procter & Gamble is kicking off a lineup of earnings for consumer staples stocks as investors look for insight into spending trends. Goldman Sachs' Jason English lays out the sector's trade. Plus, Citigroup says it's premature to rule out the potential for a credit crunch in the U.S., with the bank noting it's underweight both investment grade and high-yield bonds. Sanctuary Wealth's Mary Ann Bartels gives her investment thesis. And, will the busy trading week close higher or lower? Pivotal Advisors' Tiffany McGhee weighs in.