Roger grab a cool beer and relax.If that does not work,have another,and another until such time you do relax.
It is not a big deal.
People come in, do a good job and move on.Sean Kam came aboard,did a great job,job done ,left,Craig Stephen came aboard,did a great job,moved to a bigger job at Tainui.Some one moves out/on, the window of opportunity opens for some-one else.!