Longtop's great growth seduced some of the biggest fund names.
Wide divergence in returns highlights the importance of knowing what you own.
BlackRock, Capital Group, Fidelity, and Putnam are the latest firms to cut jobs.
Plus, Putnam cuts expenses, outlooks from Bill Gross and Jeremy Grantham, and more.
Plus, Columbia shuffles tech managers, Templeton manager exits, and more.
Putnam makes new bid to improve international research, and more.
Manager instability in its foreign funds is an alarming trend.