In the last 3 years TO's per game average is:

5.0 receptions for 76.3 yards

Can Roy duplicate those numbers?

Here's a comparison:  How did the Giants manage to replace Plaxico Burress, Eli's number one receiver, for 7 games in 2008?  Answer: D.Hixon stepped up and became Eli's number one receiver.  Look at the stats:

Last four years for Plaxico Burress per game average:

4.3 receptions for 65.7 yards (1 rec of 11 yards less than TO)

In the 7 games in 2008 when Plaxico didn't play, Hixon became Eli's number one target and averaged per game:

4.5 receptions for 64.7 yards (almost identical with Plax)

What the Giants lost in Plax, they replaced with Hixon (statistically).

How did Roy Williams do his last three years in Detroit?

He played in 33 games; caught 163 balls for 2380 yards.  What is his per game average:

4.9 receptions for 72.1 yards (as the "go to guy")

Roy's numbers as the "go to guy" are better than TO's, Plaxico's or Hixon's.

Do you think Dallas will be able to replace TO's numbers with Roy, like the Giants replaced Plaxico's numbers with Hixon?