After years of regulatory time-outs and punishing asset caps, Wells Fargo is finally having some fun. The lender is hoping a hiring spree of elite dealmakers can help it shed the baggage of past retail banking scandals and compete with Wall Street's investment-banking heavyweights. "We've hired roughly 100 or so senior folks across the investment bank," CFO Mike Santomassimo told investors at a conference hosted by UBS in Miami on Tuesday, noting that the firm's ultimate aim is to become one of