Approved i140 - Leave US and come back later through a different h1b employer?

Assuming your I-140 was tied to Eb2, isn’t your PD of 2010 past the final action date.
I thought cap exempt H1b works only until the PD reaches the final action date.

If the above is true, you’d probably have to apply for a CAP enforced brand new H1b.

Disclaimer : I’m no legal expert, so the above are just my views based on my research. Please don’t treat them as legal opinion.