7 More Managers Fired Over Nortel Accounting
Nortel Networks, troubled Canadian telecommunications equipment maker, fires seven more financial managers in continuing probe of accounting irregularities and will try to recover about $10 million in bonuses that were paid to them last year; announces restructuring that includes layoffs of about 3,500 employees, mostly in administration and research; releases partial results for first half indicating that company was breaking even or perhaps marginally unprofitable on operating basis; estimates revenue of $2.5 billion in first quarter and $2.6 billion in second (M)