I'd say there are two or three factors that affect the growth in the number of people. One is the increase in the size of the assets that we have under management over the time frame.
If I take 2010 to 2019, our assets increased from $127 billion under management to the $392 billion today. That would be the first thing.
The second thing, as you point out, is that active management does take more expense to actively manage, to have the skill to outperform the passive alternative, so we need the teams that have the expertise to do better than average after all the expense. It's really critical that we are performing after all the expense.
When we build teams, when we start a new strategy, it has to be proved out over time that they have the skilled performance over time. It's not in every quarter, but over some longer period of time that they're demonstrating skill versus what we could just do passively—