For a corporate venturing professional (in M&A, corporate development/CVC, or a head of innovation), most of the effort goes into disqualifying bad startup candidates. As with VCs, less than 1% of applicants (or potential matches) will end up with an engagement option.
We call it the SAD syndrome, standing for: Spot — Analyse — Drop. Thousands of hours wasted in vain, with minimal progress made. Spot, analyse, drop, repeat. SAD