He had to replace Lendl, whose departure briefly devastated him.
Mr. Palen, whose departure could prompt others to leave, has formed close ties to Ms. Collins.
But then in 1936, there came a guest, Millo, whose departure she never hoped.
She will succeed Jenny Ming, whose departure Gap, based in San Francisco, first reported in July.
Next up is Zayn Malik, whose departure a year ago triggered One Direction's split.
The external appointment was "quite significant", said Gulliver, whose departure is expected in 2018.
The Navajo occupied lands left by the Anasazi, whose departure is still incompletely explained.
The two join Meredith Cross, the S.E.C's director of corporate finance, whose departure was announced on Tuesday.
He will replace David Rosenthal, who spent 13 years at Simon & Schuster and whose departure was also announced Thursday morning.
Second, there was the recent retirement of Jeffrey N. Vinik, whose departure came after a run of success.
Dell said Mr. Cannon, whose departure from Solectron was announced yesterday, will assume his new role on Feb. 26.
