Here are the scenarios:
You may have to add a pick but go up or position yourself for Haskins
Stay put take Lock
Stay put get a stud defender and take Grier in round 2
Trade down get another pick, take Jones in late 1st
Roll with Fales next year and position yourself for one of the three or four studs that will be available in 2020.
If it is me I either go for Haskins if the belief in him is there or suck it up and tank next year with an eye on 2020. If we tank in 2020, we will have added a nice draft this year and will not have to trade any assets to get what we need next year.
i pick option 3. Stay put, take a stud defender, draft Grier in 2 (or trade up to very late 1).
it gives us a year to evaluate Grier while having someone else (Fitzmagic?) and if we absolutely suck and have a chance at a guy like Tua we have a guy in house to compare him to, or we begin to move forward with year 2 Grier.