A lackluster season plus lots of roster turnover plus a deep draft class equals lots of competition.
This is what the Detroit Lions are looking at this offseason, with the departure of a number of veteran starters and draft picks coming in at need positions everywhere.
In 2012, the Lions returned 21 of their 22 starters from the previous season, and it didn't turn out so well. This year, five starters from last season (and all the special teams specialists aside from long-snapper Don Muhlbach) are already off the team, and plenty of other roster spots are likely to be up for grabs in terms of depth positions.
We won't know for sure who wins these battles until training camp, and even then, many of them will likely be decided by health (and a lack thereof). So yes, realistically, any predictions made in May fall under the "way too early" category, but that doesn't mean we can't make educated guesses.
So based on the current construction of the Lions' roster (which admittedly may not be the same four months from now), here are the most likely battles to watch as they unfold in the next few months.