One thing I always thought would be interesting (but no idea if viable): allow trusted engineers / seniors who have been in the company for a certain time to vo

One thing I always thought would be interesting (but no idea if viable): allow trusted engineers / seniors who have been in the company for a certain time to vouch and directly push a referral through to the final interview stage. Something like a joker. You could also link the referrals performance to the engineer directly and limit the joker to one per year or something like that. When I refer someone I usually do so because I worked with that person in the past and / or highly believe in their technical ability. I want to work with that person because I believe him/her to be a valuable asset for the company. It's very frustrating to loose a smart person and possibly friend because of some trick interview question