Given the wonderful response from the CEO to the brochures for the new widgets, the salesman visits your company’s accounting department, talks to

Given the wonderful response from the CEO to the brochures for the new widgets, the salesman visits your company’s accounting department, talks to the CFO and gives him a written proposal for the complete set of new widgets. The CFO says “Great. Let’s get this going.” Does the salesman have a contract? Why or why not?