While I probably could, I'm not sure I like the optics of that from the new employer since they brought me in well above the median of the salary band for this level plus other perks due to losing the bonus. Pushing out the date means that then they know I'm taking both bonus and their salary and I'm not sure it's worth it since the increase in pay is sizable. I accepted the offer assuming I'd lose the bonus, then found out based on start date options that I could pick the second start date and potentially get the bonus still. That said the new employer is pretty much a dream opportunity so I want to ensure that is protected and not seen as detrimental to my career there.