From the CEO on the earnings
https://seekingalpha.com/article/4141966-citrix-systems-ctxs-ceo-david-henshall-q4-2017-results-earnings-call-transcript
"We did go through a fair bit of restructuring over the second half of last year. We're doing that so that we could effectively rebalance talent and skill sets and other things. And so we're in the middle of that process, and we'll continue to execute that over the next couple of quarters. But I'm quite happy with where we are right now. I think the teams are doing an awesome job."