Who goes to war dismantling their weapons as they march toward the fight? (The Browns)
If this team wins 7 games, it will be impressive.

More likely they may go 3-8 in the first eleven
and I-5 in the last 6.
It could easily be 0-6 in the last 6, especially if the NFL extends the suspension.

The first eleven? I don't know how they get to 5-6 if they lose the opener.
They are likely to lose the opener.
If that puts them at 4-7, then 3-8 is just one slip up away.

Even if 4-7 they wouldn't have a 'real' shot at a playoff berth, "this" year. Even if Watson, plays, excels, and excites.
So,
If they are 3-8(ish) when Watson becomes eligible, how much ummpfh is going to be exerted in a known failed cause?
Therefore,
If Watson gets hurt in his first game back, or any number of other scenarios' the Browns team could likely mail it in on a lot of the end of the year, and then I-5 or 0-6 in the final 6 becomes not far fetched.

4-I3, or 3-I4 with a whole lot of talk about how next year with a 'full year of Watson" things will be different.

Next Year, things will be different, we've been hearing that for about a half a century now.
Meanwhile

Many teams keep their team together, and are not in a constant state of re-build.