Probably not. However, there are some legitimate concerns regarding Abreu:
"Can Abreu’s aging body hold up to another year of playing in the field everyday? Abreu will be 36 on Opening Day and by all reports is in great shape, but old is old and sooner or later his age is going to catch up with him. He showed some real signs of wear and tear in the second half of last season (see his August OPS of .655 as an example) and could probably have benefited from moving to DH this season but that definitely won’t be happening now that Hideki Matsui is in place. Bobby has played 151 or more games in every season since 1998, so he is certainly durable, but that doesn’t mean he is invincible.
Where did Bobby’s power go? Last season Bobby Abreu’s power seemed to dry up almost entirely as he finished the season with just 29 doubles, 15 home runs and an ISO of .142, easily the lowest ISO of his 12 full professional seasons. Abreu hit just one homer in his first two months as an Angel, but he did finish on an uptick to close the season by posting ISOs of .170 or higher in three of the final four months, much more in line with his typical production. So which Abreu will the Angels get in 2010?"
Meanwhile, you can't deny Heyward's upside. He's been compared to Griffey. I wouldn't be surprised if we saw Abreu's floor this season, which is certainly lower than Heyward's ceiling.