Nigel, let me -- let us take those in reverse order. You’re exactly right in terms of the strong performance. And I would argue the strong performance for the full year that we saw in Aviation, despite the MAX headwinds. But, as we look forward, I think we’re looking at a more complex situation in and around the MAX. Clearly, priority one here is safety. I think, our friends at Boeing have been crystal clear. We’re going to take the FAA’s lead here, and we’re trying to support both Boeing and the FAA to the fullest extent possible. I think, if you look back, before we look forward, clearly, we were building engines; we were delivering to Boeing at normal rates through 2019. We’re going to see our shipment rates fall roughly half the ‘19 rate in ‘20. Clearly, it’s going to be a bit of a gap here as a result relative to deliveries. And in turn, that drives some of the variability that you see in the guide. I think, from an operating perspective, what we’re really dealing with are three things, right? We are going to have a lower build profile, which in turn will challenge us on the cost side. We need to make sure that we are adjusting our cost structure accordingly but also taking the long view, because this will be a temporary wall, as Boeing has indicated, and we will be ramping up presumably later in the year. So, we want to make sure that not only our teams, but our supply chains are prepared to rebound. With the mid-year return to service, we know we’re going to see fewer spare engine deliveries. Folks were ramping through the back half of last year in preparation for return to service. There’ll be a bit of a wall there as well that will put a little bit of mix pressure on us obviously. And I think, we’ll continue to see fewer new orders, which are a nice source of cash for us, at least until mid-year. But, if that mid-year return to services realized, clearly we’re going to resume deliveries. And that’ll be a positive from a cash perspective in terms of just the AR that will come in, clearly a bit of an offset relative to process -- progress liquidation. So, a number of moving pieces here. We’re going to manage through this as we always do. But, it’s not simply the setup that we saw last year where we were building, shipping, delivering and seeing the receivables build, many more moving pieces as we look ahead to 2020.