The following are from The Legal Thing and hit the nail so hard on the head that I am just going to quote them:
I suggest reading all of the post - regardless if you are potential client or another lawyer. Something in there for anyone to learn from.
No. 1 - You only litigate when you have an important interest to protect. Litigation is costly. Incredibly costly. But it is not the expense that is the real issue, it's the diversion of resources. Time employees spend reviewing e-mails and documents, educating lawyers and preparing for depositions is time away from the business. That's the real cost of litigation.
No. 2 - A non-judicial resolution is almost always preferable. When you file a complaint, you are turning over resolution of an issue to a third party - be it a judge, arbitrator or jury. To a great degree you lose control of the outcome.
No. 3 - You litigate when you have a high degree of confidence that you will prevail. Bluffing is for weekend games of Texas Hold'em . When you file suit, you need to have fully evaluated all aspects of the case to ensure that the outcome will be favorable.
No. 4 - You litigate to win. This means that your employees, board and management team fully understand and support the commitment (both financial and time) required to prevail. It also means having seasoned litigation counsel who understand your business and objectives.
For the view from the client's side of counsel table is this post Juries, Courtrooms and Linear Thinking.