@ToddF I have just figured out how to do this. Well, I didn’t figure it out, but rather found a source that explained how. It’s a bit convoluted because apparently YouTube / Google have made it so you have to view YouTube videos on their platform only. Thus you can download YouTube videos, but they stay within the YouTube app and not accessible from other apps. However there is a way around it, but it requires a 3rd party app called Documents by Readdle. The procedure isn’t especially hard once you do it a couple of times.
1. Open Documents
2. Tap the blue compass icon in the lower right
3. Type www.y2mate.com in the search bar
4. Paste the URL of the YouTube video you wish to download in the red search field (which you get by the Copy Link function on YouTube)
5. You’ll then get some download options for resolution. 720 is fine. Tap the green download for 720.
6. Tap the purple Done button when Save File page appears.
7. Tap down arrow at bottom of page
8. You next get a page showing your downloads.
9. Tap the eyeball looking icon for the video you want to save to your IOS Photos for your iPhone or iPad
10. Tap the ... underneath the video
11. Tap copy option
12. Select the Photos option for your iPad/iPhone Photos and tap the purple Copy button on top right.
Violà!! Your video is now in your IPad Photos and can be imported into Coach’s Eye.
Okay, I did say it was convoluted, but it works, it’s fast, and I haven’t found another way.