回复：终于有人回答我的问题了，谢谢pjiang老师。再问老师

那么，如果我现在递交申请，再换工作，理论上是可以的吧，
- Y, it is not non-doable but I would rather wait

不太了解，是否有啥规定。
- The NIW requires a permanent job which is your current position, while you will loss it in less than 2 months

还有，如果换了工作再交申请，是不是还需要新老板写推荐信呀？ 谢谢！
- Not mandatory