I experience different results: when the brand name is in front on the title like "Brand - Tag Line" and you search for "tag line" google modifies the title to "Tag Line: Brand" which is quite annoying for me.

I tested for a couple of month "Brand - Tag Line 1 | Tag Line 2" and searching for "tag line" didn't produced any title change, yet I hate the way the pipe looks on the title, so we decided to move back to "Brand - Tag Line" and well, stand whatever google decides to modify.

Yes, that's an inline script (putting it at the top or bottom will still be inline), but as I said, if only one page is using that script, you are good to go. There's nothing bad in using inline scripts if they aren't going to be used on other pages as well.

Inline scripts are bad if you are bringing them on every page, if that's the case, just use scrip embedding so users don't need to download the scripts EVERY time they see a page.

But, if the inline script is used only on a specific page and not reused, then there's no reason to load it as an external file. In my opinion, that will even need an extra server call to bring a code that only works on that page.

Hope that helps!