What are the most important talent gaps in the effective altruism community?

Note that this article is from 2017. For more up-to-date findings, see our new 2018 survey, which asked most of the same questions and some additional ones.
Update April 2019: We think that our use of the term ‘talent gaps’ in this post (and elsewhere) has caused some confusion. We’ve written a post clarifying what we meant by the term and addressing some misconceptions that our use of it may have caused. Most importantly, we now think it’s much more useful to talk about specific skills and abilities that are important constraints on particular problems rather than talking about ‘talent constraints’ in general terms. This page may be misleading if it’s not read in conjunction with our clarifications.
What are the highest-impact opportunities in the effective altruism community right now? We surveyed leaders at 17 key organisations to learn more about what skills they need and how they would trade-off receiving donations against hiring good staff. It’s a more extensive and up-to-date version of the survey we did last year.
Below is a summary of the key numbers, a link to a presentation with all the results, a discussion of what these numbers mean, and at the bottom an appendix on how the survey was conducted and analysed.
We also report on two additional surveys about the key bottlenecks in the community, and the amount of donations expected to these organisations.