Fidelity Investments has cut roles in its enterprise-cloud-computing (ECC) unit, according to two people familiar with the matter. The privately held firm's unit told employees they could either try to find other positions internally or leave the firm, according to the one of the people. Separately, at least two senior leaders within the business line — the unit's former head and the head of enterprise-cloud-computing architecture — exited earlier this year. The ECC unit builds out a central cloud solution for the firm's different business lines.