The firm circulated a memo last month to associates outlining the reversal of its long-standing policy of letting associates take credit for new clients. The firm also will no longer let associates open new matters or bill clients, moving those responsibilities to partners.

The decision regarding so-called “origination credit” is a big change for Wilson. Wilson partners and associates said eliminating origination credits for associates is part of the firm’s attempt to shift away from an “eat-what-you-kill” model that encourages lawyers to work only on their own clients. The model has created tension between partners who service long-standing clients and those who got credit for bringing them to the firm.