Chicago-Beleaguered consultancy MarchFirst Inc. will cut 550 more jobs, trimming its work force to some 8,150 people. The layoffs follow a previous round of 1,000 cuts, announced in November. MarchFirst is one of several start-up e-consultancies experiencing tough times, as client lists shrink and competition from the Big 5 consultancies increases. While MarchFirst's predicament is serious, it does have supporters that expect that it will eventually turn a profit. Among them are Francisco Partners L.P., a San Francisco-based venture capital firm that recently invested $150 million in the consulting firm.