Yeah, thanks, Glenn. I guess, I'll start and Jane, feel free to add in on it. Look, it is a balancing act, right, and we do look at each of our five core businesses. We, obviously, are clear on the strategy, but where is the growth, where the return opportunities associated with them, and how do we ensure we are deploying resources after them in order to deliver for the client and deliver on those returns over time? We have to juxtapose that against the required investments to modernize our operations and we're making those trade-offs on a regular basis. But importantly, when we do invest to capture those growth opportunities, we're agile, we're trying to be agile about it, which means, if those opportunities don't play out in the way we're expecting, because the cycle just doesn't mature or materialize in that fashion, we've got to be disciplined enough to dial them back and that's what you've seen over the past year-plus, is that we've been investing in the business where we didn't see the upside that we anticipated, we dialed back that spend, right, and that's the type of iterative process, if you will, Glenn, that we're putting in place to ensure that on the other side of this we're still positioned to capture growth. Investment Banking, for example, we've invested in healthcare and technology, building out to prepare ourselves for when that market rebounds. We feel good about that. We've done similar things in the way of our wealth business. We are investing heavily in our TTS franchise to ensure we can remain competitive there. So it's that type of discipline that's required. It is sometimes a trade-off, but it's one that we've been very focused on being smart about.