Step 1. Look at current coaches, players.
Step 2. Sigh your own players. Versatility on both sides of the ball. Foundation, not icing on cake.
Step 3. Look Luck's healing.
Step 1. If old coaches are not any good, sign your own new coaches.
Step 2. Closer look at players signed in 2017 with coaches signed in 2018.
Step 3. Sign more players for new schemes. Versatility on both sides of the ball. Foundation, not icing on cake.
3.1. Do not sign one year wonders: you can't count on them to produce long term (Melvin, Robinson).
3.2. Do not sign aged veterans (only stop gap): their wheels will fall off before another players get experience (Gore, Derrick Johnson).
3.3. Do not sign names: a lot of players known for highlights and from the past, not for all body of work (Trumaine Johnson, Darrell Revis).
3.4. Do not sign often injured players; you can't count on them to produce long term.
3.5. Do not sign players exelled in other schemes (Davis, Brown).
3.6. Wait for players, who will be cut after first wave start of free agency.
3.7. Wait for players, who will be cut after draft.
Step 4. If there are no good players to sign, DO NOT sign average ones just to fill the spots. You better resign+frontload current players, including young ones like Anderson, Geathers, and roll over to make future cap space even bigger.
Step 5. When your players are young, fit the schemes, signed for frontloaded contracts, when your coaches become comfortable at their jobs and have full season to elevate current player, future FA and drafft prospects... go FA full throttle!