Are commercial law departments in law firms at a tipping point?

When talking recently with the private practice community, I’ve discussed the old chestnut of law firm billing (a chat with me is a guaranteed riot). I’ll start at the end of the conversation. We discussed that the current law firm model is in rude health for corporate transactions, but has a challenging future for run-of-the-mill commercial work. The outlook is sunny for the corporate rainmakers but cloudy for those who don’t know an SPA from a TSA.