Don't just assume that you have to choose from the first executive desks and chairs you see. What most people fail to realize is that there are many options, and the models that you first come across are usually just the tip of the iceberg.
What if you see a style of desk that you really like but the wood finish is not exactly what you want? Ask for the chair in a different finish. The type of leather or other fabric is not right on an office chair? Change it. Most manufacturers make their products in a number of wood finishes with a range of options about fabric and leather type, color, etc.
Never assume that something cannot be modified. Always ask.