The bank also named John Esposito as the head of FIG Americas, according to a memo send out on 29 December, that emerged yesterday.
It also named Yoichiro Ito and Takashi Kurose as co-heads of FIG Japan, taking over from Kohei Yuki who will remain a senior banker focusing on important FIG clients in Japan.
The appointments were effective from 1 January, 2010.
Bischof, 45, has been with Morgan Stanley for 13 years and was earlier global chief operating officer of the financial institutions group.
Pruzan, 41, a 15-year Morgan Stanley veteran, was co-head of North America FIG M&A.