Full size image download when sharing albums

If you want them to be able to work on your original files, AND your team members have their own subscription, you could change the sharing method for the albums. Using the "Invite Only" sharing option, you would set the individual share settings to "Can Edit", then send the invitation. On receipt the team member accepts the invitation, then opens the Lightroom Desktop app. The shared album would appear in their "Shared with You" section and they can either edit directly in LrD (which would be applied to your master images, so best to ensure they make use of the "Versions" feature to keep their edits separate from yours) or they can download using "Original + Settings" to edit elsewhere.

You could also maybe consider using the "can contribute" sharing option. Basically, a team member could setup an empty album and share it with you (via invite) using the "can contribute" option. On receipt and acceptance of the invite, you can then add to that album the images that you want them to work on.....these are copied across the cloud to their own account, and from there they have full "ownership" of the copies of the original images, meaning they can edit and download using LrD or LrWeb. You could even arrange it so that both of you could edit the same images (creating your own "versions" which the other could also see).

The downside is that the team member would need their own account, and for each image that you contribute you would be using cloud space in both accounts. Also it could get more complicated to manage the separate copies of the originals.