Pensions, nonprofits and family offices are increasingly bringing in outsiders to manage their investment portfolios, according to consultant Cerulli Associates. The institutions have turned to these hired guns at a pace that shows no signs of abating. Assets controlled by the outsourced chief investment office, or OCIO, industry will jump more than 50 percent to $1.7 trillion by 2023 in the U.S., Cerulli said Monday in a report. The growth, led by endowments and foundations, will look different than it has previously, according to Michele Giuditta, director at Cerulli.