Lehman Brothers has promoted two of its high-yield analysts to managerial positions. Susan Jansen, retail and lodging analyst, and Christine Daley, who follows distressed credits, have become deputy heads of high-yield research reporting to Mike Guarnieri, the group head. Guarnieri says the promotions were made to reward the two analysts for their excellent work. Daley has been the top distressed analyst four times on the annual Institutional Investor All-America Fixed-Income Research Team. Jansen has placed third in the II poll for two straight years. They will retain responsibility for their sector coverage.