No there is a massive gap. Heyward in his last 3 years Gordon has a 50 DRS and 40.4 UZR as a LF in 3601.2 innings, Heyward has a 69 DRS and 56.0 UZR in 3232.0 innings. The other top 3 defenders in LF in that time frame are Marte and Cespedes, For Heyward it's Reddick and Calhoun. When Heyward and Reddick have played CF they've been positive defenders, when Cespedes played CF he was a turd, When Marte's played CF hee's been below average to a turd Heyward is facing much stronger competition in RF. THink about the bad defenders too. In LF you have guys like Dom Brown, Melky Cabrera, Josh WIllingham, etc. In RF your "bum" defenders are guys like Markakis, Hunter, and Beltran. 2 guys who're old as **** and used to be quite good CFers, and one guy who used to really be good in RF before he lost his range.