SoftBank could have just walked away from WeWork and its $9 billion investment. Business experts explain why it didn't.

SoftBank's decision this week to double down on its investment in WeWork is a risky strategy.
The move raises an obvious question — why didn't SoftBank just walk away, letting WeWork go bust or putting the onus on JPMorgan, which was putting together a rival rescue plan, to bail it out?
SoftBank in a statement said the move was motivated by the promise it still sees in WeWork's business.
If so, it had good reason to try to step in as soon as possible and try to take control of the turnarou