Loretta is past his prime. End of story. He has the range of a mailbox, and doesn't get it done with the bat. He hits for average, and makes contact - he is adequate, but that's it. He has the lowest SLG (and SecAvg) of any starting 2B in the AL, AND the lowest GB/FB ratio (he does have a higher LD% than many 2B, but not higher enough). His RC/G dropped for the third consecutive year in 2006 despite coming to a better offensive team in a better hitter's park. The package just isn't there. Even ignoring the stats, I don't understand how to defend him. He is a professional, no question, but watching him play is agony.
If the team doesn't trade Manny they can carry Gonzalez's bat no problem. They did not have an issue scoring runs this year when healthy. Gonzalez comes about $4Mil a year cheaper than Lugo, who is not equal to that value in terms of an upgrade, on paper, and who has yet to be tested in Fenway Park, which AGon has. Perhaps the FO feels they can throw that money around. Personally I'd prefer to see it spent on pitching.