I've been put on a 4-week improvement plan with tight deadlines, but the goals seem achievable if I work extra hours. While my manager appears supportive, I don't fully trust his intentions.
On the other hand, I have another job lined up, which I'm excited about, and it offers a higher compensation. They want me to join early but they are open to waiting the month for me to start.
Do you suggest I wait to be laid off and receive severance (which I estimate would be about 12 weeks' pay), or is there an advantage to leaving the company before the improvement plan finishes?
No kids, no debts, and enough savings to support me for 5 years.
The first point is to check whether the layoff information will be shared in the relieving letter or during the background verification process. Most companies won't do this, but it's better to confirm.
If I were you, I would wait to be laid off and receive the severance package. I believe you won't have received the expected appraisal and bonus. There's no need to feel guilty.
There's a chance you might be successful in the PIP. Will you given an opinion to take severance package and leave. DO NOT CHECK THIS WITH YOUR MANAGER. Please check with someone outside the team.
It sounds like you are already checked out of the current company, so I would try to optimize for getting paid.
I would try to schedule your start date for the new company as close to the end of the month as possible.
I wouldn't work very hard to meet your deadlines at your current company to lock in the low performance expectation and have a higher chance to receive the resulting severance package.