economy
Jamie Dimon promotes two potential successors at JPMorgan
Marianne Lake leaves bank as Doug Petno and Troy Rohrbaugh handed two of its largest divisions

TL;DR
- Marianne Lake is departing from JPMorgan Chase.
- Doug Petno and Troy Rohrbaugh have been assigned leadership roles in two major divisions.
- This is part of leadership promotions orchestrated by CEO Jamie Dimon.