They could if they are getting in the 09-10 Howard not 100% he will recover from that back injury and get back to his previous level plus somebody would need to do a sign/trade with Bosh because they don't have the cap space.
Right now i'm torn I would love to see the Pacer's do it because they are the underdogs but I feel sorry for Lebron he is getting no help and the media will find a way to blame him for this if they where both at their best then fine but Miama are nowhere near their best and Spoelstra has not adapted well during this series good coaches make changes during a series, great coaches make changes during the game. Also the Spurs will beat the Pacer's in 5 or 6 while the heat would somehow give the Spurs a better series imo.