Aside from 56 at-bats for Baltimore in 2006, Fernando Tatis has not played in the majors since 2003. Nevertheless, the Mets have invited him to spring training and would love to have a righty bat to potentially serve the role Julio Franco once filled - pinch-hitter/caddy to Carlos Delgado.source Fox sports
While coaches and scouts know what he offers at the plate, what he can do in the field is more unknown. Harper filled in for Mike Carp at first base when he went down with an injury early in the year, and even spent time in the outfield so Oliveras could keep his bat in the lineup when Carp returned. He does have good hands to plate first base, but his limited agility and quickness
leaves many to wonder how he could fit in the National League.
Nevertheless, Harper should continue to receive his chances as long as his health and production remain. The question now exists, where does he go from here? Oliveras believes for him to take his career to a new level, it may be time for him to move beyond Binghamton.
"I won't speak for the organization because it is their decision to make, but to me, he could be a Major Leaguer right now because of his bat. He's got the attitude and he knows how to hit. He's been in Binghamton a long time now, and he knows what he's facing in this league; he proved all that he's going to here. It will be interesting to see what they do with him next season" he said. source MiLB.com