Swinging for the fences is more apt for companies like Magic Leap, Groupon, Gilt, Pebble, etc.
I'd characterize this guy's approach as being more like "Moneyball." [2]
I'm not sure "Moneyball" fits here, the premise of Moneyball was using advanced analytics to take advantage of market inefficiencies.
I would say the baseball idiom that fits here is "cover (one's) bases"
https://idioms.thefreedictionary.com/cover+(one%27s)+bases
>cover (one's) bases To ensure one's safety or success by dealing with every potentially problematic aspect of a situation or activity. A reference to baseball, in which the defensive players must make sure all bases (and baserunners who may occupy them) are accounted for.
(I am fascinated about how many English (American?) idioms are derived from baseball and how I never really thought about it until a couple years ago)
Eg. making 101 100:1 bets makes way more sense than risking everything on a single victory-or-bust gamble.
- kept his day job while working on startup - did fake campaign on FB to gauge demand - got friends to try product - croudfunded the first batch
This is a really risk averse guy who is making it big. Sort of the opposite of the bombastic risk-it-all founder we often see in SV hero stories.