As per the latest buzz, Karan Johar is eager to sign Deepika Padukone on for three films. Considering the fact that DP has delivered four back-to-back blockbuster films last year including Johar?s Yeh Jawaani Hai Deewani, we aren?t surprised. With this, reports about Ms Padukone replacing Kareena Kapoor Khan as Karan Johar?s favourite heroine have started doing the rounds. But wethinks that?s not the case at all. After all, at the end of the day, filmmaking is just a business. And if you are a producer or a director, you want to work with actors who get the cash registers ringing, no? Saif Ali Khan?s Begum may be a bankable actor, but 2013 just wasn?t her year, with Gori Tere Pyaar Mein going thud at the BO. So if Karan wants to cash in on Deepika?s success by sealing a great deal, is there is anything wrong with it? Any intelligent producer/director would do the same, hai na?