As any investor will tell you, the ideal time to sell any stock is at or near the top of the market. Better to leave a little profit on the table than to hold a security until it plummets. "Never fall in love with a stock," they say. This week, if you're holding shares of Maurice Jones-Drew, Antonio Brown or Michael Vick, you should consider cashing out. There's a very good chance that each of these players are near their peak in terms of trade value.