First off, I would look to trade down (unless someone like Jamal Adams or Malik Hooker falls to 15.) A trade partner that was recently mentioned on this forum could be someone like Denver. In this scenario, we would receive their 1st (20) and their 3rd (82nd) for our 1st (15).
1st (20). Gareon Conley CB Ohio State- IMO the 2nd best CB in this draft behind Marshon Lattimore, is a good man to man corner and could likely start as a #2 CB opposite Vontae. IMO can be a future #1 CB.
2nd (48) Jordan Willis OLB Kansas State- Even before the combine, I thought he was a disruptive pass rusher and his combine stats just confirmed it. I wouldn't mind taking someone like TJ Watt here either but in a few mocks, I've seen Willis fall to us and I personally prefer him over Watt.
3rd (80)Josh Jones S NC State- Had a good workout at the Combine but watching his film, whilst he does appear to be a little raw, he is also still a good player. He shows a willingness to hit and he does have the ability to cover (I saw him covering a potential 1st/2nd round TE David Njoku when he played Miami.) Could be a good interchangeable safety after a year or 2.
3rd (82)Jeremy McNichols RB Boise State- I think he is a very underrated RB who has the potential to be a home run hitter (I also saw somewhere he faced 8 men in the box over 50% of his carries.) He can start as a 3rd down back as he does have receiving ability and he can learn from Frank Gore.
4th (122) Jourdan Lewis CB Michigan- He will likely fall because of his size as well as his off the field issues. But I believe Ballard will be more willing to take chances on someone with off the field issues than Grigson was. And with someone like Lewis' talent (2X 1st team All American) he would be hard to pass up.
4th (137) Daeshon Hall OLB Texas A&M- To me, Hall does show signs of being a good 3-4 OLB. With someone with his size and measurables, his ceiling could be someone like a Preston Smith in Washington.
4th (144) Jarron Jones DE/DT Notre Dame- Watching Jones on film, he reminds a bit of Chris Jones for KC. Whilst inconsistent, there were times on film where he looked dominate and he would add competition to the Dline (something I'm sure Ballard wants.)
5th (158)Tanner Vallejo ILB Boise State- After seeing his pro day stats, I read somewhere that he played injured for the 2016 season. But when I watched his film, he looked like a good tackler ( despite having his wrist banged up) and shows he has the ability to cover. He would likely be a WILB in our system.