That's certainly the arc that technology seems to take when it comes to products and even professionals, consigning the stars of today to the memory bins of yesteryear. And yet, every now and then something happens to demonstrate that these arcs are not always consistent. Indeed, India's IT landscape has emerged as a total head-scratcher when it comes to figuring out what's hot and what's not when it comes to skills that will help you survive. There's a gigantic shift taking place in IT services as the old-era practice of housing mainframes on premises with flocks of in-house or outsourced techies maintaining this infrastructure and devising applications to cater to these businesses empires has died almost overnight. Today, the digital world and cloud businesses are taking care of much of that.