Robert Tipp, PGIM Fixed Income Chief Investment Strategist, says the Fed has already shot all of its bullets. Sara House, Wells Fargo Corporate & Investment Banking Senior Economist, expects to see 7% CPI in the first quarter. Bill Lee, Milken Chief Economist, says President Xi has only gotten more powerful in China. Amrita Sen, Energy Aspects Founder & Research Director, says she wouldn't rule out a pause or a cut from OPEC.