Ian, it's Dave. I appreciate the questions. Let me cover that first part in terms of guide change, and then I'll turn it over to Scott. So relative to what we've changed in the guide, as you know, from February to May, maintained the overall guide, what we have certainly seen as the second half has shaped up and I'm certainly not going to tell you or anybody else things you don't know at this point, but revisions in North America On-Highway build rates are significant, so as we frankly entered late Q2, early Q3, you started to see announcements of layoffs, shift reductions, down days, extended summer shutdowns, I would observe. We probably haven't seen anything quite like that in several years. The fact is OEMs are responding to near-term market demand conditions. You'll notice plenty of comments, I think, from the OEMs relative to supporting market demand from dealer inventory. Inventories are relatively elevated. We talked earlier in the year about the expectation of medium-duty softening this year, that, in fact, has been the case. OEM comments for Q2 also indicated some level of moderation on the Class 8 straight vocational side as well. So that combination, if you really look at focus on the overall changes in the guide, that would be probably the most relevant thing to note for the second half as we rolled up everything. So again, we're staying close to the market and are making sure that we can certainly meet customer requirements and timing. But at this point, we're sizing, as I think we even talked about in May, our run rates ourselves in terms of overall manpower and our own production rates. So for us, it's really getting back to a more lean capacity rate operations, as we've talked about in the past, very attractive to us in terms of incrementals, also allowing our team to really invest a little bit more time in the day-to-day operations relative to maintenance and also some of the quality initiatives that we've been pursuing. So that, combined with some operational efficiency projects and other things we've been looking to get some time to implement, we will be pursuing in this, I would say, quieter period. But overall, better positioned, we believe, to certainly meet market demand, as we've talked about the last few years with the number of investments in capacity both in North America as well as outside North America with projects coming on, capacity coming online or coming online shortly. I think it's also very important to us as we think about current market conditions as more of a deferral versus any type of real permanent change in demand. So let me turn it over to Scott for the second part.