With 20 players set to be restricted or unrestricted free agents, the Dallas Cowboys will have plenty of decisions to make on who to keep and who to let go.

Let’s take a look at the free agents to be and how they could fit into the Cowboys’ future:

Right tackle Jermey Parnell

Type: Unrestricted

What he did: When the Cowboys lost Doug Free to foot and ankle injuries during the season, they were fortunate to have Parnell step in. He started five games plus both playoff games. He did a solid job but he also had some struggles with diagnosing different defensive looks and pressures. The Cowboys put a lot of time in developing Parnell after signing him off the New Orleans Saints' practice squad in 2010. They were patient with him, gave him an extension in 2012 despite having just played in six games. He started one game apiece in 2012 and '13 before getting the five starts in 2014.

What he could do: If he signs with the Cowboys, then he would be the starter. Free is also a free agent, and the Cowboys will not be able to keep both. If Free remains, then Parnell would look elsewhere for starter's playing time and perhaps he could follow Bill Callahan to the Washington Redskins. Parnell turns 29 in July, so he has the age advantage on Free (31), but he is not as good a tackle. He could be solid, but the Cowboys would need to make sure they are covered with a good backup.

What it should cost: On Monday, I put Free in the $4.5 million neighborhood with Breno Giacomini's deal as the comparison. I wouldn’t put Parnell in the same neighborhood. If another team wants to pay him that kind of money, let them and draft a guy. If the Cowboys lose Free, they need to hold to what they think Parnell is worth and not overpay because of need. And they could always draft an offensive tackle in the first round for the fourth time in four years if necessary.

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