Yes, thanks. It is great question. I'd say the majority of these, we think, will be permanent. Here is the reason. We, every year, have been pushing. We have this goal that Steve spoke about that is to get to an EBITDA margin of 20%. And so every year, we – well, we don't expect there in a year. Every year, we take on projects. And this year, we redid a lot of our IT infrastructure, some supply chain infrastructure. We redid part of our innovation alignment and technology groups. We've challenged as part of the normal business planning process in February and March, a lot of those costs and the millions have been taken out of that $1.5 billion in education just in permanent cost structure. The part that will come back is that around 10% of our commission – I mean, the commission expense, let's say, is 15%. About 10% of it is truly variable, the rest being out draws and so forth. And so as revenue comes back, that of the $5-plus million of costs that were lower in fourth quarter, that related to a $15 million decline in revenue, $1.5 million that would come back, will come back in the form of commissions. And our travel expenses, we think, won't need to recover to the same level they were before. But because our sales force is actually doing very well at making lots and lots of sales calls, but that will come back some, too. And so if you think of it as the $7 million for the year that was taken out, a little less than half of it would probably $2 million, $2.5 million will come back and the rest of it with the permanent reduction. Steve, I don't know if you want to add to that or fix that?