I agree the second "pivot" doesn't sound like a pivot,
However w/r/t The first pivot doesn't sound like a pivot; they built a new business with the same venture money.
That sounds like a pivot, the way I define it. I agree most pivots do have some tangential relationship from the previous goal thats because you learn where the market is from what you've done. Thats not to say its the only way to find a new market opportunity. I'm not sure why you define Twitter as a pivot and not Fab. Twitter was Odeo which was a podcasting company which was sinking. Evan Williams had blogging experience but Jack Dorsey (as I understand it) was the original idea guy behind Twitter.
A lot of pivots aren't related to the original idea that founded the company. For the VCs doing something else with that money is almost more important then just continuing to chase an idea without legs, since once the money is invested they can't reinvest in new ventures.
Moving away from flash sales could be considered a pivot. They may have discovered others (i.e. Gilt) where buying up all the good seconds, or that their buyers where buying the wrong thing and their flash sales where not selling out.
However w/r/t The first pivot doesn't sound like a pivot; they built a new business with the same venture money.
That sounds like a pivot, the way I define it. I agree most pivots do have some tangential relationship from the previous goal thats because you learn where the market is from what you've done. Thats not to say its the only way to find a new market opportunity. I'm not sure why you define Twitter as a pivot and not Fab. Twitter was Odeo which was a podcasting company which was sinking. Evan Williams had blogging experience but Jack Dorsey (as I understand it) was the original idea guy behind Twitter.
A lot of pivots aren't related to the original idea that founded the company. For the VCs doing something else with that money is almost more important then just continuing to chase an idea without legs, since once the money is invested they can't reinvest in new ventures.