It's also not easy for big companies to change course, add
features, iterate, or experiment. PayPal can't simply decide
to shift its focus toward consumers, nor would they want to.
This reminds me of an outstanding article I read some time ago which advised: "Attack your competitors'
strengths, not their weaknesses." In other words, WePay might have failed if their goal was (for example)
just to provide better customer service, PayPal's weakness. This is because PayPal could ostensibly improve their customer service without affecting their bottom line.
Merchant-oriented services are PayPal's strength, and WePay "attacked" that strength by catering to non-merchants, which, as the article states, they could not do without a core shift in values and focus.