#3 Only credible challenger for Bayley on SmackDown
Assuming that brand restrictions are still in place as far as cashing in the Money in the Bank briefcase is considered, if Sasha Banks does win the briefcase, she would have no choice but to go after the SmackDown Women's Championship.
Like I've already mentioned, giving the briefcase to Banks acts as an escape route for her and allows her to finally go after a title. On top of that, Sasha Banks vs Bayley is a feud that needs to happen because she's the only credible challenger for that title left on SmackDown.
Bayley's reign as the women's champion on the Blue brand is coming close to completing a full year and she's already successfully overcome all competition she's faced so far.
She's set to face Tamina at Money in the Bank but it doesn't particularly feel that it would result in the SmackDown Women's Championship changing hands, despite the threat that the challenger possesses. So it only makes sense to give Banks a chance after that match.