I wouldn't say anything is SAFE with the draft.
There's always a chance of BUST even with highly rated prospects. You just have to go off your best research. This is why there is a combine, interview process, film study, and personal workouts. Teams are trying to get a feel for the guy to see if he can become a successful pro.
The truth is it's a crapshoot even with the best most intensive research process, you will still pick some flops. The only thing you can do is do your homework and pick the best evaluated talent possible with the best mental makeup and hope it works out. Even a 'boring' draft isn't necessarily safe. Those picks might be considered boring because they don't have the upside to turn into a good pro which should be the actual end goal.
This article gives interesting insight to draft position success based on snap count analysis:
2025 NFL Draft: What historical hit rates reveal about positional success
The big takeaway is that the premium positions are usually also the lower success rate by snap count analysis:
Note that Edge, CB, QB, and WR generally correlate to lower 'success' by snap count. And yet they are also the most in demand, highly paid, and sought after positions in the draft. Getting a "HIT" on one of these positions is a much better value relative to rarity then getting a HIT with positions that already generally succeed based on snap count indicators.