Weil's Corporate Chair Exits for Cravath, Putting a 600-Lawyer Practice in Play
Michael Aiello, corporate chair at Weil, Gotshal & Manges, is leaving the firm to join Cravath. The move was reported Sept. 10 by The Wall Street Journal and The American Lawyer. Aiello led Weil's corporate practice of more than 600 lawyers.
Weil counts 1,200 lawyers in total, according to The Wall Street Journal. The corporate group Aiello led accounts for more than half of that headcount on a straight divisional count. His title was corporate chair.
The departure follows earlier reporting on pressure inside the partnership. On Aug. 20, the Journal published an article titled 'Rainmakers in Talks to Leave Weil Gotshal Amid Poaching Frenzy'. That report framed the talks as part of a wider contest for origination-heavy partners, partners who bring in large client assignments.
Compensation sets the terms of that contest. Rival firms were luring top legal talent with pay packages stretching to $20 million a year or more, according to the Journal in its Aug. 20 coverage. No compensation term for Aiello's own move was disclosed in the verified reports.
The broader context here is the difference between a partner lateral and a practice-head lateral. A partner lateral, a partner switching firms, moves a book, meaning portable client relationships. A practice-head lateral moves that book plus staffing authority, associate allocation, and the internal referral network that directs work across offices. For practitioners, the second category requires a different conflicts and transition analysis.
In my view, headcount concentration explains why this exit carries weight beyond the name. When 600-plus lawyers sit inside one practice in a 1,200-lawyer firm, leadership controls hiring, utilization, and the pipeline for future equity partners, partners who share in profits. A change at the top resets those expectations. It also tests portability. Clients retain counsel on paper, but mandates follow relationships and teams, and teams weigh platform, rate structure, and who staffs the deal day to day.
Looking at what this means for partnership economics, the $20 million figure deserves careful parsing. Guaranteed packages of that size do not map cleanly onto a single year's collections. They price expected origination over multiple years, cross-selling into other practices, and the signaling value to other laterals and to associates choosing where to build a career. Scale matters. The cost is carried by the equity partnership through diluted points, higher leverage targets, or extended guarantees. The benefit, if it materializes, arrives as retained mandates and lateral follow-on hires.
In practical terms, the immediate task at Weil is succession in the corporate chair and retention inside the 600-person group. At Cravath, the immediate task is integration without fracturing existing compensation discipline. Both tasks are operational. Neither is resolved by announcement alone.
