In our out
I think throwing hard numbers like 90/10 out there when talking about IaaS, DCaaS or even SaaS is a mistake. If you are looking at how you do IT based on the amount of work you do internally vs the amount you do externally and you have fixed targets then I don't think you're going to be flexible enough to withstand the rapid changes that every company is seeing right now. I wouldn't put a % on either side, my approach is to do the things that we can do faster, less expensively and better in house and push anything that is easier to manage and less expensive to maintain on the cloud out to the cloud. We have a couple of core applications that we just can't push out to the cloud even if we went with an IaaS because we are constantly touching it. Those applications we'll keep in house and keep them close because they need the attention. Everything else is fair game, if a company comes along that does it better than we have done it in house then we'll move. I don't want to lock myself into either mentality that 90% should be in-house or that 90% should be outsourced that way I'm not forcing square pegs into round holes just for the sake of making an artificial target of my own making.